@tonejs/midi - npm Package Compare versions

Comparing version 2.0.27 to 2.0.28

build/Midi.js

@@ -1,2 +0,2 @@
-!function(t,e){if("object"==typeof exports&&"object"==typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var r=e();for(var n in r)("object"==typeof exports?exports:t)[n]=r[n]}}("undefined"!=typeof self?self:this,(function(){return function(t){var e={};function r(n){if(e[n])return e[n].exports;var i=e[n]={i:n,l:!1,exports:{}};return t[n].call(i.exports,i,i.exports,r),i.l=!0,i.exports}return r.m=t,r.c=e,r.d=function(t,e,n){r.o(t,e)||Object.defineProperty(t,e,{enumerable:!0,get:n})},r.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},r.t=function(t,e){if(1&e&&(t=r(t)),8&e)return t;if(4&e&&"object"==typeof t&&t&&t.__esModule)return t;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:t}),2&e&&"string"!=typeof t)for(var i in t)r.d(n,i,function(e){return t[e]}.bind(null,i));return 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t.forEach((function(t){t.meta&&("timeSignature"===t.type?r.timeSignatures.push({ticks:t.absoluteTime,timeSignature:[t.numerator,t.denominator]}):"setTempo"===t.type?r.tempos.push({bpm:6e7/t.microsecondsPerBeat,ticks:t.absoluteTime}):"keySignature"===t.type&&r.keySignatures.push({key:e.keySignatureKeys[t.key+7],scale:0===t.scale?"major":"minor",ticks:t.absoluteTime}))}))})),t.tracks[0].forEach((function(t){t.meta&&("trackName"===t.type?r.name=t.text:"text"!==t.type&&"cuePoint"!==t.type&&"marker"!==t.type&&"lyrics"!==t.type||r.meta.push({text:t.text,ticks:t.absoluteTime,type:t.type}))})),this.update())}return t.prototype.update=function(){var t=this,e=0,r=0;this.tempos.sort((function(t,e){return t.ticks-e.ticks})),this.tempos.forEach((function(n,i){var a=i>0?t.tempos[i-1].bpm:t.tempos[0].bpm,o=n.ticks/t.ppq-r,s=60/a*o;n.time=s+e,e=n.time,r+=o})),this.timeSignatures.sort((function(t,e){return t.ticks-e.ticks})),this.timeSignatures.forEach((function(e,r){var n=r>0?t.timeSignatures[r-1]:t.timeSignatures[0],i=(e.ticks-n.ticks)/t.ppq/n.timeSignature[0]/(n.timeSignature[1]/4);n.measures=n.measures||0,e.measures=i+n.measures}))},t.prototype.ticksToSeconds=function(t){var e=n.search(this.tempos,t);if(-1!==e){var r=this.tempos[e],i=r.time,a=(t-r.ticks)/this.ppq;return i+60/r.bpm*a}return.5*(t/this.ppq)},t.prototype.ticksToMeasures=function(t){var e=n.search(this.timeSignatures,t);if(-1!==e){var r=this.timeSignatures[e],i=(t-r.ticks)/this.ppq;return r.measures+i/(r.timeSignature[0]/r.timeSignature[1])/4}return t/this.ppq/4},Object.defineProperty(t.prototype,"ppq",{get:function(){return i.get(this)},enumerable:!0,configurable:!0}),t.prototype.secondsToTicks=function(t){var e=n.search(this.tempos,t,"time");if(-1!==e){var r=this.tempos[e],i=(t-r.time)/(60/r.bpm);return Math.round(r.ticks+i*this.ppq)}var a=t/.5;return Math.round(a*this.ppq)},t.prototype.toJSON=function(){return{keySignatures:this.keySignatures,meta:this.meta,name:this.name,ppq:this.ppq,tempos:this.tempos.map((function(t){return{bpm:t.bpm,ticks:t.ticks}})),timeSignatures:this.timeSignatures}},t.prototype.fromJSON=function(t){this.name=t.name,this.tempos=t.tempos.map((function(t){return Object.assign({},t)})),this.timeSignatures=t.timeSignatures.map((function(t){return Object.assign({},t)})),this.keySignatures=t.keySignatures.map((function(t){return Object.assign({},t)})),this.meta=t.meta.map((function(t){return Object.assign({},t)})),i.set(this,t.ppq),this.update()},t.prototype.setTempo=function(t){this.tempos=[{bpm:t,ticks:0}],this.update()},t}();e.Header=a},function(t,e,r){e.parseMidi=r(6),e.writeMidi=r(7)},function(t,e,r){"use strict";function n(t,e,r){void 0===r&&(r="ticks");var n=0,i=t.length,a=i;if(i>0&&t[i-1][r]<=e)return i-1;for(;n<a;){var o=Math.floor(n+(a-n)/2),s=t[o],c=t[o+1];if(s[r]===e){for(var 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t.number,Object.assign(r,t),Array.isArray(this.controlChanges[r.number])||(this.controlChanges[r.number]=[]),n.insert(this.controlChanges[r.number],r,"ticks"),this},t.prototype.addPitchBend=function(t){var e=u.get(this),r=new o.PitchBend({},e);return Object.assign(r,t),n.insert(this.pitchBends,r,"ticks"),this},Object.defineProperty(t.prototype,"duration",{get:function(){if(!this.notes.length)return 0;for(var t=this.notes[this.notes.length-1].time+this.notes[this.notes.length-1].duration,e=0;e<this.notes.length-1;e++){var r=this.notes[e].time+this.notes[e].duration;t<r&&(t=r)}return t},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"durationTicks",{get:function(){if(!this.notes.length)return 0;for(var t=this.notes[this.notes.length-1].ticks+this.notes[this.notes.length-1].durationTicks,e=0;e<this.notes.length-1;e++){var r=this.notes[e].ticks+this.notes[e].durationTicks;t<r&&(t=r)}return t},enumerable:!0,configurable:!0}),t.prototype.fromJSON=function(t){var e=this;for(var r in this.name=t.name,this.channel=t.channel,this.instrument=new s.Instrument(void 0,this),this.instrument.fromJSON(t.instrument),void 0!==t.endOfTrackTicks&&(this.endOfTrackTicks=t.endOfTrackTicks),t.controlChanges)t.controlChanges[r]&&t.controlChanges[r].forEach((function(t){e.addCC({number:t.number,ticks:t.ticks,value:t.value})}));t.notes.forEach((function(t){e.addNote({durationTicks:t.durationTicks,midi:t.midi,ticks:t.ticks,velocity:t.velocity})}))},t.prototype.toJSON=function(){for(var t={},e=0;e<127;e++)this.controlChanges.hasOwnProperty(e)&&(t[e]=this.controlChanges[e].map((function(t){return t.toJSON()})));var r={channel:this.channel,controlChanges:t,pitchBends:this.pitchBends.map((function(t){return t.toJSON()})),instrument:this.instrument.toJSON(),name:this.name,notes:this.notes.map((function(t){return t.toJSON()}))};return void 0!==this.endOfTrackTicks&&(r.endOfTrackTicks=this.endOfTrackTicks),r},t}();e.Track=h},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.controlChangeNames={1:"modulationWheel",2:"breath",4:"footController",5:"portamentoTime",7:"volume",8:"balance",10:"pan",64:"sustain",65:"portamentoTime",66:"sostenuto",67:"softPedal",68:"legatoFootswitch",84:"portamentoControl"},e.controlChangeIds=Object.keys(e.controlChangeNames).reduce((function(t,r){return t[e.controlChangeNames[r]]=r,t}),{});var n=new WeakMap,i=new WeakMap,a=function(){function t(t,e){n.set(this,e),i.set(this,t.controllerType),this.ticks=t.absoluteTime,this.value=t.value}return Object.defineProperty(t.prototype,"number",{get:function(){return i.get(this)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"name",{get:function(){return e.controlChangeNames[this.number]?e.controlChangeNames[this.number]:null},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"time",{get:function(){return n.get(this).ticksToSeconds(this.ticks)},set:function(t){var e=n.get(this);this.ticks=e.secondsToTicks(t)},enumerable:!0,configurable:!0}),t.prototype.toJSON=function(){return{number:this.number,ticks:this.ticks,time:this.time,value:this.value}},t}();e.ControlChange=a},function(t,e,r){"use strict";var n=this&&this.__awaiter||function(t,e,r,n){return new(r||(r=Promise))((function(i,a){function o(t){try{c(n.next(t))}catch(t){a(t)}}function s(t){try{c(n.throw(t))}catch(t){a(t)}}function c(t){var e;t.done?i(t.value):(e=t.value,e instanceof r?e:new r((function(t){t(e)}))).then(o,s)}c((n=n.apply(t,e||[])).next())}))},i=this&&this.__generator||function(t,e){var r,n,i,a,o={label:0,sent:function(){if(1&i[0])throw i[1];return i[1]},trys:[],ops:[]};return a={next:s(0),throw:s(1),return:s(2)},"function"==typeof Symbol&&(a[Symbol.iterator]=function(){return this}),a;function s(a){return function(s){return function(a){if(r)throw new TypeError("Generator is already 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this.header.name},set:function(t){this.header.name=t},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"duration",{get:function(){var t=this.tracks.map((function(t){return t.duration}));return Math.max.apply(Math,t)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"durationTicks",{get:function(){var t=this.tracks.map((function(t){return t.durationTicks}));return Math.max.apply(Math,t)},enumerable:!0,configurable:!0}),t.prototype.addTrack=function(){var t=new c.Track(void 0,this.header);return this.tracks.push(t),t},t.prototype.toArray=function(){return o.encode(this)},t.prototype.toJSON=function(){return{header:this.header.toJSON(),tracks:this.tracks.map((function(t){return t.toJSON()}))}},t.prototype.fromJSON=function(t){var e=this;this.header=new s.Header,this.header.fromJSON(t.header),this.tracks=t.tracks.map((function(t){var r=new c.Track(void 0,e.header);return r.fromJSON(t),r}))},t.prototype.clone=function(){var e=new t;return e.fromJSON(this.toJSON()),e},t}();e.Midi=u;var h=r(3);e.Track=h.Track;var f=r(0);e.Header=f.Header},function(t,e){function r(t){for(var e,r=new n(t),i=[];!r.eof();){var a=o();i.push(a)}return i;function o(){var t={};t.deltaTime=r.readVarInt();var n=r.readUInt8();if(240==(240&n)){if(255!==n){if(240==n){t.type="sysEx";a=r.readVarInt();return t.data=r.readBytes(a),t}if(247==n){t.type="endSysEx";a=r.readVarInt();return t.data=r.readBytes(a),t}throw"Unrecognised MIDI event type byte: "+n}t.meta=!0;var i=r.readUInt8(),a=r.readVarInt();switch(i){case 0:if(t.type="sequenceNumber",2!==a)throw"Expected length for sequenceNumber event is 2, got "+a;return t.number=r.readUInt16(),t;case 1:return t.type="text",t.text=r.readString(a),t;case 2:return t.type="copyrightNotice",t.text=r.readString(a),t;case 3:return t.type="trackName",t.text=r.readString(a),t;case 4:return t.type="instrumentName",t.text=r.readString(a),t;case 5:return t.type="lyrics",t.text=r.readString(a),t;case 6:return t.type="marker",t.text=r.readString(a),t;case 7:return t.type="cuePoint",t.text=r.readString(a),t;case 32:if(t.type="channelPrefix",1!=a)throw"Expected length for channelPrefix event is 1, got "+a;return t.channel=r.readUInt8(),t;case 33:if(t.type="portPrefix",1!=a)throw"Expected length for portPrefix event is 1, got "+a;return t.port=r.readUInt8(),t;case 47:if(t.type="endOfTrack",0!=a)throw"Expected length for endOfTrack event is 0, got "+a;return t;case 81:if(t.type="setTempo",3!=a)throw"Expected length for setTempo event is 3, got "+a;return t.microsecondsPerBeat=r.readUInt24(),t;case 84:if(t.type="smpteOffset",5!=a)throw"Expected length for smpteOffset event is 5, got "+a;var o=r.readUInt8();return t.frameRate={0:24,32:25,64:29,96:30}[96&o],t.hour=31&o,t.min=r.readUInt8(),t.sec=r.readUInt8(),t.frame=r.readUInt8(),t.subFrame=r.readUInt8(),t;case 88:if(t.type="timeSignature",4!=a)throw"Expected length for timeSignature event is 4, got "+a;return t.numerator=r.readUInt8(),t.denominator=1<<r.readUInt8(),t.metronome=r.readUInt8(),t.thirtyseconds=r.readUInt8(),t;case 89:if(t.type="keySignature",2!=a)throw"Expected length for keySignature event is 2, got "+a;return t.key=r.readInt8(),t.scale=r.readUInt8(),t;case 127:return t.type="sequencerSpecific",t.data=r.readBytes(a),t;default:return t.type="unknownMeta",t.data=r.readBytes(a),t.metatypeByte=i,t}}else{var s;if(0==(128&n)){if(null===e)throw"Running status byte encountered before status byte";s=n,n=e,t.running=!0}else s=r.readUInt8(),e=n;var c=n>>4;switch(t.channel=15&n,c){case 8:return t.type="noteOff",t.noteNumber=s,t.velocity=r.readUInt8(),t;case 9:var u=r.readUInt8();return t.type=0===u?"noteOff":"noteOn",t.noteNumber=s,t.velocity=u,0===u&&(t.byte9=!0),t;case 10:return t.type="noteAftertouch",t.noteNumber=s,t.amount=r.readUInt8(),t;case 11:return t.type="controller",t.controllerType=s,t.value=r.readUInt8(),t;case 12:return t.type="programChange",t.programNumber=s,t;case 13:return t.type="channelAftertouch",t.amount=s,t;case 14:return t.type="pitchBend",t.value=s+(r.readUInt8()<<7)-8192,t;default:throw"Unrecognised MIDI event type: "+c}}}}function n(t){this.buffer=t,this.bufferLen=this.buffer.length,this.pos=0}n.prototype.eof=function(){return this.pos>=this.bufferLen},n.prototype.readUInt8=function(){var t=this.buffer[this.pos];return this.pos+=1,t},n.prototype.readInt8=function(){var t=this.readUInt8();return 128&t?t-256:t},n.prototype.readUInt16=function(){return(this.readUInt8()<<8)+this.readUInt8()},n.prototype.readInt16=function(){var t=this.readUInt16();return 32768&t?t-65536:t},n.prototype.readUInt24=function(){return(this.readUInt8()<<16)+(this.readUInt8()<<8)+this.readUInt8()},n.prototype.readInt24=function(){var t=this.readUInt24();return 8388608&t?t-16777216:t},n.prototype.readUInt32=function(){return(this.readUInt8()<<24)+(this.readUInt8()<<16)+(this.readUInt8()<<8)+this.readUInt8()},n.prototype.readBytes=function(t){var e=this.buffer.slice(this.pos,this.pos+t);return this.pos+=t,e},n.prototype.readString=function(t){var e=this.readBytes(t);return String.fromCharCode.apply(null,e)},n.prototype.readVarInt=function(){for(var t=0;!this.eof();){var e=this.readUInt8();if(!(128&e))return t+e;t+=127&e,t<<=7}return t},n.prototype.readChunk=function(){var t=this.readString(4),e=this.readUInt32();return{id:t,length:e,data:this.readBytes(e)}},t.exports=function(t){var e=new n(t),i=e.readChunk();if("MThd"!=i.id)throw"Bad MIDI file.  Expected 'MHdr', got: '"+i.id+"'";for(var a=function(t){var e=new n(t),r=e.readUInt16(),i=e.readUInt16(),a={format:r,numTracks:i},o=e.readUInt16();32768&o?(a.framesPerSecond=256-(o>>8),a.ticksPerFrame=255&o):a.ticksPerBeat=o;return a}(i.data),o=[],s=0;!e.eof()&&s<a.numTracks;s++){var c=e.readChunk();if("MTrk"!=c.id)throw"Bad MIDI file.  Expected 'MTrk', got: '"+c.id+"'";var u=r(c.data);o.push(u)}return{header:a,tracks:o}}},function(t,e){function r(t,e,r){var a,o=new i,s=e.length,c=null;for(a=0;a<s;a++)!1!==r.running&&(r.running||e[a].running)||(c=null),c=n(o,e[a],c,r.useByte9ForNoteOff);t.writeChunk("MTrk",o.buffer)}function n(t,e,r,n){var i=e.type,a=e.deltaTime,o=e.text||"",s=e.data||[],c=null;switch(t.writeVarInt(a),i){case"sequenceNumber":t.writeUInt8(255),t.writeUInt8(0),t.writeVarInt(2),t.writeUInt16(e.number);break;case"text":t.writeUInt8(255),t.writeUInt8(1),t.writeVarInt(o.length),t.writeString(o);break;case"copyrightNotice":t.writeUInt8(255),t.writeUInt8(2),t.writeVarInt(o.length),t.writeString(o);break;case"trackName":t.writeUInt8(255),t.writeUInt8(3),t.writeVarInt(o.length),t.writeString(o);break;case"instrumentName":t.writeUInt8(255),t.writeUInt8(4),t.writeVarInt(o.length),t.writeString(o);break;case"lyrics":t.writeUInt8(255),t.writeUInt8(5),t.writeVarInt(o.length),t.writeString(o);break;case"marker":t.writeUInt8(255),t.writeUInt8(6),t.writeVarInt(o.length),t.writeString(o);break;case"cuePoint":t.writeUInt8(255),t.writeUInt8(7),t.writeVarInt(o.length),t.writeString(o);break;case"channelPrefix":t.writeUInt8(255),t.writeUInt8(32),t.writeVarInt(1),t.writeUInt8(e.channel);break;case"portPrefix":t.writeUInt8(255),t.writeUInt8(33),t.writeVarInt(1),t.writeUInt8(e.port);break;case"endOfTrack":t.writeUInt8(255),t.writeUInt8(47),t.writeVarInt(0);break;case"setTempo":t.writeUInt8(255),t.writeUInt8(81),t.writeVarInt(3),t.writeUInt24(e.microsecondsPerBeat);break;case"smpteOffset":t.writeUInt8(255),t.writeUInt8(84),t.writeVarInt(5);var u=31&e.hour|{24:0,25:32,29:64,30:96}[e.frameRate];t.writeUInt8(u),t.writeUInt8(e.min),t.writeUInt8(e.sec),t.writeUInt8(e.frame),t.writeUInt8(e.subFrame);break;case"timeSignature":t.writeUInt8(255),t.writeUInt8(88),t.writeVarInt(4),t.writeUInt8(e.numerator);var h=255&Math.floor(Math.log(e.denominator)/Math.LN2);t.writeUInt8(h),t.writeUInt8(e.metronome),t.writeUInt8(e.thirtyseconds||8);break;case"keySignature":t.writeUInt8(255),t.writeUInt8(89),t.writeVarInt(2),t.writeInt8(e.key),t.writeUInt8(e.scale);break;case"sequencerSpecific":t.writeUInt8(255),t.writeUInt8(127),t.writeVarInt(s.length),t.writeBytes(s);break;case"unknownMeta":null!=e.metatypeByte&&(t.writeUInt8(255),t.writeUInt8(e.metatypeByte),t.writeVarInt(s.length),t.writeBytes(s));break;case"sysEx":t.writeUInt8(240),t.writeVarInt(s.length),t.writeBytes(s);break;case"endSysEx":t.writeUInt8(247),t.writeVarInt(s.length),t.writeBytes(s);break;case"noteOff":(c=(!1!==n&&e.byte9||n&&0==e.velocity?144:128)|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.noteNumber),t.writeUInt8(e.velocity);break;case"noteOn":(c=144|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.noteNumber),t.writeUInt8(e.velocity);break;case"noteAftertouch":(c=160|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.noteNumber),t.writeUInt8(e.amount);break;case"controller":(c=176|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.controllerType),t.writeUInt8(e.value);break;case"programChange":(c=192|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.programNumber);break;case"channelAftertouch":(c=208|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.amount);break;case"pitchBend":(c=224|e.channel)!==r&&t.writeUInt8(c);var f=8192+e.value,p=127&f,l=f>>7&127;t.writeUInt8(p),t.writeUInt8(l);break;default:throw"Unrecognized event type: "+i}return c}function i(){this.buffer=[]}i.prototype.writeUInt8=function(t){this.buffer.push(255&t)},i.prototype.writeInt8=i.prototype.writeUInt8,i.prototype.writeUInt16=function(t){var e=t>>8&255,r=255&t;this.writeUInt8(e),this.writeUInt8(r)},i.prototype.writeInt16=i.prototype.writeUInt16,i.prototype.writeUInt24=function(t){var e=t>>16&255,r=t>>8&255,n=255&t;this.writeUInt8(e),this.writeUInt8(r),this.writeUInt8(n)},i.prototype.writeInt24=i.prototype.writeUInt24,i.prototype.writeUInt32=function(t){var e=t>>24&255,r=t>>16&255,n=t>>8&255,i=255&t;this.writeUInt8(e),this.writeUInt8(r),this.writeUInt8(n),this.writeUInt8(i)},i.prototype.writeInt32=i.prototype.writeUInt32,i.prototype.writeBytes=function(t){this.buffer=this.buffer.concat(Array.prototype.slice.call(t,0))},i.prototype.writeString=function(t){var e,r=t.length,n=[];for(e=0;e<r;e++)n.push(t.codePointAt(e));this.writeBytes(n)},i.prototype.writeVarInt=function(t){if(t<0)throw"Cannot write negative variable-length integer";if(t<=127)this.writeUInt8(t);else{var e=t,r=[];for(r.push(127&e),e>>=7;e;){var n=127&e|128;r.push(n),e>>=7}this.writeBytes(r.reverse())}},i.prototype.writeChunk=function(t,e){this.writeString(t),this.writeUInt32(e.length),this.writeBytes(e)},t.exports=function(t,e){if("object"!=typeof t)throw"Invalid MIDI data";e=e||{};var n,a=t.header||{},o=t.tracks||[],s=o.length,c=new i;for(function(t,e,r){var n=null==e.format?1:e.format,a=128;e.timeDivision?a=e.timeDivision:e.ticksPerFrame&&e.framesPerSecond?a=-(255&e.framesPerSecond)<<8|255&e.ticksPerFrame:e.ticksPerBeat&&(a=32767&e.ticksPerBeat);var o=new i;o.writeUInt16(n),o.writeUInt16(r),o.writeUInt16(a),t.writeChunk("MThd",o.buffer)}(c,a,s),n=0;n<s;n++)r(c,o[n],e);return c.buffer}},function(t,e,r){"use strict";var n=this&&this.__spreadArrays||function(){for(var t=0,e=0,r=arguments.length;e<r;e++)t+=arguments[e].length;var n=Array(t),i=0;for(e=0;e<r;e++)for(var a=arguments[e],o=0,s=a.length;o<s;o++,i++)n[i]=a[o];return n},i=this&&this.__importDefault||function(t){return t&&t.__esModule?t:{default:t}};Object.defineProperty(e,"__esModule",{value:!0});var a=r(1),o=r(0),s=i(r(9));function c(t){return s.default(t.notes.map((function(e){return function(t,e){return[{absoluteTime:t.ticks,channel:e,deltaTime:0,noteNumber:t.midi,type:"noteOn",velocity:Math.floor(127*t.velocity)},{absoluteTime:t.ticks+t.durationTicks,channel:e,deltaTime:0,noteNumber:t.midi,type:"noteOff",velocity:Math.floor(127*t.noteOffVelocity)}]}(e,t.channel)})))}function u(t,e){return{absoluteTime:t.ticks,channel:e,controllerType:t.number,deltaTime:0,type:"controller",value:Math.floor(127*t.value)}}function h(t){return{absoluteTime:0,channel:t.channel,deltaTime:0,programNumber:t.instrument.number,type:"programChange"}}e.encode=function(t){var e={header:{format:1,numTracks:t.tracks.length+1,ticksPerBeat:t.header.ppq},tracks:n([n([{absoluteTime:0,deltaTime:0,meta:!0,text:t.header.name,type:"trackName"}],t.header.keySignatures.map((function(t){return function(t){var e=o.keySignatureKeys.indexOf(t.key);return{absoluteTime:t.ticks,deltaTime:0,key:e+7,meta:!0,scale:"major"===t.scale?0:1,type:"keySignature"}}(t)})),t.header.meta.map((function(t){return{absoluteTime:(e=t).ticks,deltaTime:0,meta:!0,text:e.text,type:e.type};var e})),t.header.tempos.map((function(t){return function(t){return{absoluteTime:t.ticks,deltaTime:0,meta:!0,microsecondsPerBeat:Math.floor(6e7/t.bpm),type:"setTempo"}}(t)})),t.header.timeSignatures.map((function(t){return function(t){return{absoluteTime:t.ticks,deltaTime:0,denominator:t.timeSignature[1],meta:!0,metronome:24,numerator:t.timeSignature[0],thirtyseconds:8,type:"timeSignature"}}(t)})))],t.tracks.map((function(t){return n([(e=t.name,{absoluteTime:0,deltaTime:0,meta:!0,text:e,type:"trackName"}),h(t)],c(t),function(t){for(var e=[],r=0;r<127;r++)t.controlChanges.hasOwnProperty(r)&&t.controlChanges[r].forEach((function(r){e.push(u(r,t.channel))}));return e}(t),function(t){var e=[];return t.pitchBends.forEach((function(r){e.push(function(t,e){return{absoluteTime:t.ticks,channel:e,deltaTime:0,type:"pitchBend",value:t.value}}(r,t.channel))})),e}(t));var e})))};return e.tracks=e.tracks.map((function(t){t=t.sort((function(t,e){return t.absoluteTime-e.absoluteTime}));var e=0;return t.forEach((function(t){t.deltaTime=t.absoluteTime-e,e=t.absoluteTime,delete t.absoluteTime})),t.push({deltaTime:0,meta:!0,type:"endOfTrack"}),t})),new Uint8Array(a.writeMidi(e))}},function(t,e,r){"use strict";function n(t){return function t(e,r){for(var n=0;n<e.length;n++){var i=e[n];Array.isArray(i)?t(i,r):r.push(i)}return r}(t,[])}function i(t,e){if("number"!=typeof e)throw new TypeError("Expected the depth to be a number");return function t(e,r,n){n--;for(var i=0;i<e.length;i++){var a=e[i];n>-1&&Array.isArray(a)?t(a,r,n):r.push(a)}return r}(t,[],e)}t.exports=function(t){if(!Array.isArray(t))throw new TypeError("Expected value to be an array");return n(t)},t.exports.from=n,t.exports.depth=function(t,e){if(!Array.isArray(t))throw new TypeError("Expected value to be an array");return i(t,e)},t.exports.fromDepth=i},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=r(4);e.createControlChanges=function(){return new Proxy({},{get:function(t,e){return t[e]?t[e]:n.controlChangeIds.hasOwnProperty(e)?t[n.controlChangeIds[e]]:void 0},set:function(t,e,r){return n.controlChangeIds.hasOwnProperty(e)?t[n.controlChangeIds[e]]=r:t[e]=r,!0}})}},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=new WeakMap,i=function(){function t(t,e){n.set(this,e),this.ticks=t.absoluteTime,this.value=t.value}return Object.defineProperty(t.prototype,"time",{get:function(){return n.get(this).ticksToSeconds(this.ticks)},set:function(t){var e=n.get(this);this.ticks=e.secondsToTicks(t)},enumerable:!0,configurable:!0}),t.prototype.toJSON=function(){return{ticks:this.ticks,time:this.time,value:this.value}},t}();e.PitchBend=i},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=r(13),i=new WeakMap,a=function(){function t(t,e){if(this.number=0,i.set(this,e),this.number=0,t){var r=t.find((function(t){return"programChange"===t.type}));r&&(this.number=r.programNumber)}}return Object.defineProperty(t.prototype,"name",{get:function(){return this.percussion?n.DrumKitByPatchID[this.number]:n.instrumentByPatchID[this.number]},set:function(t){var e=n.instrumentByPatchID.indexOf(t);-1!==e&&(this.number=e)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"family",{get:function(){return this.percussion?"drums":n.InstrumentFamilyByID[Math.floor(this.number/8)]},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"percussion",{get:function(){return 9===i.get(this).channel},enumerable:!0,configurable:!0}),t.prototype.toJSON=function(){return{family:this.family,name:this.name,number:this.number}},t.prototype.fromJSON=function(t){this.number=t.number},t}();e.Instrument=a},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.instrumentByPatchID=["acoustic grand piano","bright acoustic piano","electric grand piano","honky-tonk piano","electric piano 1","electric piano 2","harpsichord","clavi","celesta","glockenspiel","music box","vibraphone","marimba","xylophone","tubular bells","dulcimer","drawbar organ","percussive organ","rock organ","church organ","reed organ","accordion","harmonica","tango accordion","acoustic guitar (nylon)","acoustic guitar (steel)","electric guitar (jazz)","electric guitar (clean)","electric guitar 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i,a,o=(i=/^([a-g]{1}(?:b|#|x|bb)?)(-?[0-9]+)/i,a={cbb:-2,cb:-1,c:0,"c#":1,cx:2,dbb:0,db:1,d:2,"d#":3,dx:4,ebb:2,eb:3,e:4,"e#":5,ex:6,fbb:3,fb:4,f:5,"f#":6,fx:7,gbb:5,gb:6,g:7,"g#":8,gx:9,abb:7,ab:8,a:9,"a#":10,ax:11,bbb:9,bb:10,b:11,"b#":12,bx:13},function(t){var e=i.exec(t),r=e[1],n=e[2];return a[r.toLowerCase()]+12*(parseInt(n,10)+1)}),s=new WeakMap,c=function(){function t(t,e,r){s.set(this,r),this.midi=t.midi,this.velocity=t.velocity,this.noteOffVelocity=e.velocity,this.ticks=t.ticks,this.durationTicks=e.ticks-t.ticks}return Object.defineProperty(t.prototype,"name",{get:function(){return t=this.midi,e=Math.floor(t/12)-1,n(t)+e.toString();var t,e},set:function(t){this.midi=o(t)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"octave",{get:function(){return Math.floor(this.midi/12)-1},set:function(t){var e=t-this.octave;this.midi+=12*e},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"pitch",{get:function(){return n(this.midi)},set:function(t){this.midi=12*(this.octave+1)+["C","C#","D","D#","E","F","F#","G","G#","A","A#","B"].indexOf(t)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"duration",{get:function(){var t=s.get(this);return t.ticksToSeconds(this.ticks+this.durationTicks)-t.ticksToSeconds(this.ticks)},set:function(t){var e=s.get(this).secondsToTicks(this.time+t);this.durationTicks=e-this.ticks},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"time",{get:function(){return s.get(this).ticksToSeconds(this.ticks)},set:function(t){var e=s.get(this);this.ticks=e.secondsToTicks(t)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"bars",{get:function(){return s.get(this).ticksToMeasures(this.ticks)},enumerable:!0,configurable:!0}),t.prototype.toJSON=function(){return{duration:this.duration,durationTicks:this.durationTicks,midi:this.midi,name:this.name,ticks:this.ticks,time:this.time,velocity:this.velocity}},t}();e.Note=c}])}));
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Expected 'MHdr', got: '"+i.id+"'";for(var a=function(t){var e=new r(t),n={format:e.readUInt16(),numTracks:e.readUInt16()},i=e.readUInt16();return 32768&i?(n.framesPerSecond=256-(i>>8),n.ticksPerFrame=255&i):n.ticksPerBeat=i,n}(i.data),o=[],s=0;!n.eof()&&s<a.numTracks;s++){var c=n.readChunk();if("MTrk"!=c.id)throw"Bad MIDI file.  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u=31&e.hour|{24:0,25:32,29:64,30:96}[e.frameRate];t.writeUInt8(u),t.writeUInt8(e.min),t.writeUInt8(e.sec),t.writeUInt8(e.frame),t.writeUInt8(e.subFrame);break;case"timeSignature":t.writeUInt8(255),t.writeUInt8(88),t.writeVarInt(4),t.writeUInt8(e.numerator);var h=255&Math.floor(Math.log(e.denominator)/Math.LN2);t.writeUInt8(h),t.writeUInt8(e.metronome),t.writeUInt8(e.thirtyseconds||8);break;case"keySignature":t.writeUInt8(255),t.writeUInt8(89),t.writeVarInt(2),t.writeInt8(e.key),t.writeUInt8(e.scale);break;case"sequencerSpecific":t.writeUInt8(255),t.writeUInt8(127),t.writeVarInt(s.length),t.writeBytes(s);break;case"unknownMeta":null!=e.metatypeByte&&(t.writeUInt8(255),t.writeUInt8(e.metatypeByte),t.writeVarInt(s.length),t.writeBytes(s));break;case"sysEx":t.writeUInt8(240),t.writeVarInt(s.length),t.writeBytes(s);break;case"endSysEx":t.writeUInt8(247),t.writeVarInt(s.length),t.writeBytes(s);break;case"noteOff":(c=(!1!==n&&e.byte9||n&&0==e.velocity?144:128)|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.noteNumber),t.writeUInt8(e.velocity);break;case"noteOn":(c=144|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.noteNumber),t.writeUInt8(e.velocity);break;case"noteAftertouch":(c=160|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.noteNumber),t.writeUInt8(e.amount);break;case"controller":(c=176|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.controllerType),t.writeUInt8(e.value);break;case"programChange":(c=192|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.programNumber);break;case"channelAftertouch":(c=208|e.channel)!==r&&t.writeUInt8(c),t.writeUInt8(e.amount);break;case"pitchBend":(c=224|e.channel)!==r&&t.writeUInt8(c);var 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n=0;t.tracks[0].forEach((function(t){n+=t.deltaTime,t.meta&&("trackName"===t.type?r.name=t.text:"text"!==t.type&&"cuePoint"!==t.type&&"marker"!==t.type&&"lyrics"!==t.type||r.meta.push({text:t.text,ticks:n,type:t.type}))})),this.update()}}return t.prototype.update=function(){var t=this,e=0,r=0;this.tempos.sort((function(t,e){return t.ticks-e.ticks})),this.tempos.forEach((function(n,i){var a=i>0?t.tempos[i-1].bpm:t.tempos[0].bpm,o=n.ticks/t.ppq-r,s=60/a*o;n.time=s+e,e=n.time,r+=o})),this.timeSignatures.sort((function(t,e){return t.ticks-e.ticks})),this.timeSignatures.forEach((function(e,r){var n=r>0?t.timeSignatures[r-1]:t.timeSignatures[0],i=(e.ticks-n.ticks)/t.ppq/n.timeSignature[0]/(n.timeSignature[1]/4);n.measures=n.measures||0,e.measures=i+n.measures}))},t.prototype.ticksToSeconds=function(t){var e=(0,n.search)(this.tempos,t);if(-1!==e){var r=this.tempos[e],i=r.time,a=(t-r.ticks)/this.ppq;return i+60/r.bpm*a}return t/this.ppq*.5},t.prototype.ticksToMeasures=function(t){var 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(choir)","pad 5 (bowed)","pad 6 (metallic)","pad 7 (halo)","pad 8 (sweep)","fx 1 (rain)","fx 2 (soundtrack)","fx 3 (crystal)","fx 4 (atmosphere)","fx 5 (brightness)","fx 6 (goblins)","fx 7 (echoes)","fx 8 (sci-fi)","sitar","banjo","shamisen","koto","kalimba","bag pipe","fiddle","shanai","tinkle bell","agogo","steel drums","woodblock","taiko drum","melodic tom","synth drum","reverse cymbal","guitar fret noise","breath noise","seashore","bird tweet","telephone ring","helicopter","applause","gunshot"],e.InstrumentFamilyByID=["piano","chromatic percussion","organ","guitar","bass","strings","ensemble","brass","reed","pipe","synth lead","synth pad","synth effects","world","percussive","sound effects"],e.DrumKitByPatchID={0:"standard kit",8:"room kit",16:"power kit",24:"electronic kit",25:"tr-808 kit",32:"jazz kit",40:"brush kit",48:"orchestra kit",56:"sound fx kit"}},233:function(t,e,r){"use strict";var n=this&&this.__awaiter||function(t,e,r,n){return new(r||(r=Promise))((function(i,a){function o(t){try{c(n.next(t))}catch(t){a(t)}}function s(t){try{c(n.throw(t))}catch(t){a(t)}}function c(t){var e;t.done?i(t.value):(e=t.value,e instanceof r?e:new r((function(t){t(e)}))).then(o,s)}c((n=n.apply(t,e||[])).next())}))},i=this&&this.__generator||function(t,e){var r,n,i,a,o={label:0,sent:function(){if(1&i[0])throw i[1];return i[1]},trys:[],ops:[]};return a={next:s(0),throw:s(1),return:s(2)},"function"==typeof Symbol&&(a[Symbol.iterator]=function(){return this}),a;function s(a){return function(s){return function(a){if(r)throw new TypeError("Generator is already executing.");for(;o;)try{if(r=1,n&&(i=2&a[0]?n.return:a[0]?n.throw||((i=n.return)&&i.call(n),0):n.next)&&!(i=i.call(n,a[1])).done)return i;switch(n=0,i&&(a=[2&a[0],i.value]),a[0]){case 0:case 1:i=a;break;case 4:return o.label++,{value:a[1],done:!1};case 5:o.label++,n=a[1],a=[0];continue;case 7:a=o.ops.pop(),o.trys.pop();continue;default:if(!((i=(i=o.trys).length>0&&i[i.length-1])||6!==a[0]&&2!==a[0])){o=0;continue}if(3===a[0]&&(!i||a[1]>i[0]&&a[1]<i[3])){o.label=a[1];break}if(6===a[0]&&o.label<i[1]){o.label=i[1],i=a;break}if(i&&o.label<i[2]){o.label=i[2],o.ops.push(a);break}i[2]&&o.ops.pop(),o.trys.pop();continue}a=e.call(t,o)}catch(t){a=[6,t],n=0}finally{r=i=0}if(5&a[0])throw a[1];return{value:a[0]?a[1]:void 0,done:!0}}([a,s])}}};Object.defineProperty(e,"__esModule",{value:!0}),e.Header=e.Track=e.Midi=void 0;var a=r(289),o=r(535),s=r(334),c=r(54),u=function(){function t(t){var e=this,r=null;if(t){var n=t instanceof ArrayBuffer?new Uint8Array(t):t;(r=(0,a.parseMidi)(n)).tracks.forEach((function(t){var e=0;t.forEach((function(t){e+=t.deltaTime,t.absoluteTime=e}))})),r.tracks=function(t){for(var e=[],r=0;r<t.length;r++)for(var n=e.length,i=new Map,a=Array(16).fill(0),o=0,s=t[r];o<s.length;o++){var c=s[o],u=n,h=c.channel;if(void 0!==h){"programChange"===c.type&&(a[h]=c.programNumber);var f=a[h],p="".concat(f," ").concat(h);i.has(p)?u=i.get(p):(u=n+i.size,i.set(p,u))}e[u]||e.push([]),e[u].push(c)}return e}(r.tracks)}this.header=new o.Header(r),this.tracks=[],t&&(this.tracks=r.tracks.map((function(t){return new s.Track(t,e.header)})),1===r.header.format&&0===this.tracks[0].duration&&this.tracks.shift())}return t.fromUrl=function(e){return n(this,void 0,void 0,(function(){var r;return i(this,(function(n){switch(n.label){case 0:return[4,fetch(e)];case 1:return(r=n.sent()).ok?[4,r.arrayBuffer()]:[3,3];case 2:return[2,new t(n.sent())];case 3:throw new Error("Could not load '".concat(e,"'"))}}))}))},Object.defineProperty(t.prototype,"name",{get:function(){return this.header.name},set:function(t){this.header.name=t},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"duration",{get:function(){var t=this.tracks.map((function(t){return t.duration}));return Math.max.apply(Math,t)},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"durationTicks",{get:function(){var t=this.tracks.map((function(t){return t.durationTicks}));return Math.max.apply(Math,t)},enumerable:!1,configurable:!0}),t.prototype.addTrack=function(){var t=new s.Track(void 0,this.header);return this.tracks.push(t),t},t.prototype.toArray=function(){return(0,c.encode)(this)},t.prototype.toJSON=function(){return{header:this.header.toJSON(),tracks:this.tracks.map((function(t){return t.toJSON()}))}},t.prototype.fromJSON=function(t){var e=this;this.header=new o.Header,this.header.fromJSON(t.header),this.tracks=t.tracks.map((function(t){var r=new s.Track(void 0,e.header);return r.fromJSON(t),r}))},t.prototype.clone=function(){var e=new t;return e.fromJSON(this.toJSON()),e},t}();e.Midi=u;var h=r(334);Object.defineProperty(e,"Track",{enumerable:!0,get:function(){return h.Track}});var f=r(535);Object.defineProperty(e,"Header",{enumerable:!0,get:function(){return f.Header}})},518:(t,e)=>{"use strict";function r(t){return["C","C#","D","D#","E","F","F#","G","G#","A","A#","B"][t%12]}Object.defineProperty(e,"__esModule",{value:!0}),e.Note=void 0;var n,i,a=(n=/^([a-g]{1}(?:b|#|x|bb)?)(-?[0-9]+)/i,i={cbb:-2,cb:-1,c:0,"c#":1,cx:2,dbb:0,db:1,d:2,"d#":3,dx:4,ebb:2,eb:3,e:4,"e#":5,ex:6,fbb:3,fb:4,f:5,"f#":6,fx:7,gbb:5,gb:6,g:7,"g#":8,gx:9,abb:7,ab:8,a:9,"a#":10,ax:11,bbb:9,bb:10,b:11,"b#":12,bx:13},function(t){var e=n.exec(t),r=e[1],a=e[2];return i[r.toLowerCase()]+12*(parseInt(a,10)+1)}),o=new WeakMap,s=function(){function t(t,e,r){o.set(this,r),this.midi=t.midi,this.velocity=t.velocity,this.noteOffVelocity=e.velocity,this.ticks=t.ticks,this.durationTicks=e.ticks-t.ticks}return Object.defineProperty(t.prototype,"name",{get:function(){return t=this.midi,e=Math.floor(t/12)-1,r(t)+e.toString();var t,e},set:function(t){this.midi=a(t)},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"octave",{get:function(){return Math.floor(this.midi/12)-1},set:function(t){var e=t-this.octave;this.midi+=12*e},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"pitch",{get:function(){return r(this.midi)},set:function(t){this.midi=12*(this.octave+1)+["C","C#","D","D#","E","F","F#","G","G#","A","A#","B"].indexOf(t)},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"duration",{get:function(){var t=o.get(this);return t.ticksToSeconds(this.ticks+this.durationTicks)-t.ticksToSeconds(this.ticks)},set:function(t){var e=o.get(this).secondsToTicks(this.time+t);this.durationTicks=e-this.ticks},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"time",{get:function(){return o.get(this).ticksToSeconds(this.ticks)},set:function(t){var e=o.get(this);this.ticks=e.secondsToTicks(t)},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"bars",{get:function(){return o.get(this).ticksToMeasures(this.ticks)},enumerable:!1,configurable:!0}),t.prototype.toJSON=function(){return{duration:this.duration,durationTicks:this.durationTicks,midi:this.midi,name:this.name,ticks:this.ticks,time:this.time,velocity:this.velocity}},t}();e.Note=s},882:(t,e)=>{"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.PitchBend=void 0;var r=new WeakMap,n=function(){function t(t,e){r.set(this,e),this.ticks=t.absoluteTime,this.value=t.value}return Object.defineProperty(t.prototype,"time",{get:function(){return r.get(this).ticksToSeconds(this.ticks)},set:function(t){var e=r.get(this);this.ticks=e.secondsToTicks(t)},enumerable:!1,configurable:!0}),t.prototype.toJSON=function(){return{ticks:this.ticks,time:this.time,value:this.value}},t}();e.PitchBend=n},334:(t,e,r)=>{"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Track=void 0;var n=r(805),i=r(543),a=r(906),o=r(882),s=r(362),c=r(518),u=new WeakMap,h=function(){function t(t,e){var r=this;if(this.name="",this.notes=[],this.controlChanges=(0,a.createControlChanges)(),this.pitchBends=[],u.set(this,e),t){var n=t.find((function(t){return"trackName"===t.type}));this.name=n?n.text:""}if(this.instrument=new s.Instrument(t,this),this.channel=0,t){for(var i=t.filter((function(t){return"noteOn"===t.type})),o=t.filter((function(t){return"noteOff"===t.type})),c=function(){var t=i.shift();h.channel=t.channel;var e=o.findIndex((function(e){return e.noteNumber===t.noteNumber&&e.absoluteTime>=t.absoluteTime}));if(-1!==e){var r=o.splice(e,1)[0];h.addNote({durationTicks:r.absoluteTime-t.absoluteTime,midi:t.noteNumber,noteOffVelocity:r.velocity/127,ticks:t.absoluteTime,velocity:t.velocity/127})}},h=this;i.length;)c();t.filter((function(t){return"controller"===t.type})).forEach((function(t){r.addCC({number:t.controllerType,ticks:t.absoluteTime,value:t.value/127})})),t.filter((function(t){return"pitchBend"===t.type})).forEach((function(t){r.addPitchBend({ticks:t.absoluteTime,value:t.value/Math.pow(2,13)})}));var f=t.find((function(t){return"endOfTrack"===t.type}));this.endOfTrackTicks=void 0!==f?f.absoluteTime:void 0}}return t.prototype.addNote=function(t){var e=u.get(this),r=new c.Note({midi:0,ticks:0,velocity:1},{ticks:0,velocity:0},e);return Object.assign(r,t),(0,n.insert)(this.notes,r,"ticks"),this},t.prototype.addCC=function(t){var e=u.get(this),r=new i.ControlChange({controllerType:t.number},e);return delete t.number,Object.assign(r,t),Array.isArray(this.controlChanges[r.number])||(this.controlChanges[r.number]=[]),(0,n.insert)(this.controlChanges[r.number],r,"ticks"),this},t.prototype.addPitchBend=function(t){var e=u.get(this),r=new o.PitchBend({},e);return Object.assign(r,t),(0,n.insert)(this.pitchBends,r,"ticks"),this},Object.defineProperty(t.prototype,"duration",{get:function(){if(!this.notes.length)return 0;for(var t=this.notes[this.notes.length-1].time+this.notes[this.notes.length-1].duration,e=0;e<this.notes.length-1;e++){var r=this.notes[e].time+this.notes[e].duration;t<r&&(t=r)}return t},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"durationTicks",{get:function(){if(!this.notes.length)return 0;for(var t=this.notes[this.notes.length-1].ticks+this.notes[this.notes.length-1].durationTicks,e=0;e<this.notes.length-1;e++){var r=this.notes[e].ticks+this.notes[e].durationTicks;t<r&&(t=r)}return t},enumerable:!1,configurable:!0}),t.prototype.fromJSON=function(t){var e=this;for(var r in this.name=t.name,this.channel=t.channel,this.instrument=new s.Instrument(void 0,this),this.instrument.fromJSON(t.instrument),void 0!==t.endOfTrackTicks&&(this.endOfTrackTicks=t.endOfTrackTicks),t.controlChanges)t.controlChanges[r]&&t.controlChanges[r].forEach((function(t){e.addCC({number:t.number,ticks:t.ticks,value:t.value})}));t.notes.forEach((function(t){e.addNote({durationTicks:t.durationTicks,midi:t.midi,ticks:t.ticks,velocity:t.velocity})}))},t.prototype.toJSON=function(){for(var t={},e=0;e<127;e++)this.controlChanges.hasOwnProperty(e)&&(t[e]=this.controlChanges[e].map((function(t){return t.toJSON()})));var r={channel:this.channel,controlChanges:t,pitchBends:this.pitchBends.map((function(t){return t.toJSON()})),instrument:this.instrument.toJSON(),name:this.name,notes:this.notes.map((function(t){return t.toJSON()}))};return void 0!==this.endOfTrackTicks&&(r.endOfTrackTicks=this.endOfTrackTicks),r},t}();e.Track=h}},e={};function r(n){var i=e[n];if(void 0!==i)return i.exports;var a=e[n]={exports:{}};return t[n].call(a.exports,a,a.exports,r),a.exports}return r.d=(t,e)=>{for(var n in e)r.o(e,n)&&!r.o(t,n)&&Object.defineProperty(t,n,{enumerable:!0,get:e[n]})},r.o=(t,e)=>Object.prototype.hasOwnProperty.call(t,e),r.r=t=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},r(233)})()}));
 //# sourceMappingURL=Midi.js.map

dist/BinarySearch.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.insert = exports.search = void 0;
 /**
@@ -4,0 +5,0 @@ * Return the index of the element at or before the given property

dist/BinarySearch.js.map

@@ -1,1 +0,1 @@
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dist/ControlChange.d.ts

@@ -0,3 +1,3 @@
+import type { MidiControllerEvent } from "midi-file";
 import { Header } from "./Header";
-import { MidiControllerEvent } from "midi-file";
 /**
@@ -36,3 +36,5 @@ * @hidden
      */
-    constructor(event: Partial<MidiControllerEvent>, header: Header);
+    constructor(event: Partial<MidiControllerEvent & {
+        absoluteTime: number;
+    }>, header: Header);
     /**
@@ -39,0 +41,0 @@ * The controller number

dist/ControlChange.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.ControlChange = exports.controlChangeIds = exports.controlChangeNames = void 0;
 /**
@@ -53,3 +54,3 @@ * A map of values to control change names
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -69,3 +70,3 @@ });
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -85,3 +86,3 @@ });
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -88,0 +89,0 @@ });

dist/ControlChange.js.map

@@ -1,1 +0,1 @@
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dist/ControlChanges.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.createControlChanges = void 0;
 var ControlChange_1 = require("./ControlChange");
@@ -4,0 +5,0 @@ /**

dist/ControlChanges.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"ControlChanges.js","sourceRoot":"","sources":["../src/ControlChanges.ts"],"names":[],"mappings":";;;AAAA,iDAAmD;AAanD;;;GAGG;AACH,SAAgB,oBAAoB;IACnC,OAAO,IAAI,KAAK,CAAC,EAAE,EAAE;QACpB,oCAAoC;QACpC,GAAG,YAAC,MAAM,EAAE,OAAO;YAClB,IAAI,MAAM,CAAC,OAAO,CAAC,EAAE;gBACpB,OAAO,MAAM,CAAC,OAAO,CAAC,CAAC;aACvB;iBAAM,IAAI,gCAAgB,CAAC,cAAc,CAAC,OAAO,CAAC,EAAE;gBACpD,OAAO,MAAM,CAAC,gCAAgB,CAAC,OAAO,CAAC,CAAC,CAAC;aACzC;QACF,CAAC;QACD,oCAAoC;QACpC,GAAG,YAAC,MAAM,EAAE,OAAO,EAAE,KAAK;YACzB,IAAI,gCAAgB,CAAC,cAAc,CAAC,OAAO,CAAC,EAAE;gBAC7C,MAAM,CAAC,gCAAgB,CAAC,OAAO,CAAC,CAAC,GAAG,KAAK,CAAC;aAC1C;iBAAM;gBACN,MAAM,CAAC,OAAO,CAAC,GAAG,KAAK,CAAC;aACxB;YACD,OAAO,IAAI,CAAC;QACb,CAAC;KACD,CAAC,CAAC;AACJ,CAAC;AApBD,oDAoBC"}

dist/Encode.d.ts

 import { Midi } from "./Midi";
 /**
- * Convert the midi object to an array
+ * Convert the MIDI object to an array.
  */
 export declare function encode(midi: Midi): Uint8Array;

dist/Encode.js

 "use strict";
-var __spreadArrays = (this && this.__spreadArrays) || function () {
-    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
-    for (var r = Array(s), k = 0, i = 0; i < il; i++)
-        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
-            r[k] = a[j];
-    return r;
+var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
+    if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
+        if (ar || !(i in from)) {
+            if (!ar) ar = Array.prototype.slice.call(from, 0, i);
+            ar[i] = from[i];
+        }
+    }
+    return to.concat(ar || Array.prototype.slice.call(from));
 };
-var __importDefault = (this && this.__importDefault) || function (mod) {
-    return (mod && mod.__esModule) ? mod : { "default": mod };
-};
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.encode = void 0;
 var midi_file_1 = require("midi-file");
 var Header_1 = require("./Header");
-var array_flatten_1 = __importDefault(require("array-flatten"));
+var array_flatten_1 = require("array-flatten");
 function encodeNote(note, channel) {
@@ -35,3 +35,3 @@ return [{
 function encodeNotes(track) {
-    return array_flatten_1.default(track.notes.map(function (note) { return encodeNote(note, track.channel); }));
+    return (0, array_flatten_1.flatten)(track.notes.map(function (note) { return encodeNote(note, track.channel); }));
 }
@@ -136,3 +136,3 @@ function encodeControlChange(cc, channel) {
 /**
- * Convert the midi object to an array
+ * Convert the MIDI object to an array.
  */
@@ -146,5 +146,5 @@ function encode(midi) {
         },
-        tracks: __spreadArrays([
-            __spreadArrays([
-                // the name data
+        tracks: __spreadArray([
+            __spreadArray(__spreadArray(__spreadArray(__spreadArray([
+                // The name data.
                 {
@@ -157,13 +157,13 @@ absoluteTime: 0,
                 }
-            ], midi.header.keySignatures.map(function (keySig) { return encodeKeySignature(keySig); }), midi.header.meta.map(function (e) { return encodeText(e); }), midi.header.tempos.map(function (tempo) { return encodeTempo(tempo); }), midi.header.timeSignatures.map(function (timeSig) { return encodeTimeSignature(timeSig); }))
+            ], midi.header.keySignatures.map(function (keySig) { return encodeKeySignature(keySig); }), true), midi.header.meta.map(function (e) { return encodeText(e); }), true), midi.header.tempos.map(function (tempo) { return encodeTempo(tempo); }), true), midi.header.timeSignatures.map(function (timeSig) { return encodeTimeSignature(timeSig); }), true)
         ], midi.tracks.map(function (track) {
-            return __spreadArrays([
-                // add the name
+            return __spreadArray(__spreadArray(__spreadArray([
+                // Add the name
                 encodeTrackName(track.name),
                 // the instrument
                 encodeInstrument(track)
-            ], encodeNotes(track), encodeControlChanges(track), encodePitchBends(track));
-        })),
+            ], encodeNotes(track), true), encodeControlChanges(track), true), encodePitchBends(track), true);
+        }), true),
     };
-    // sort and set deltaTime of all of the tracks
+    // Sort and set `deltaTime` of all of the tracks.
     midiData.tracks = midiData.tracks.map(function (track) {
@@ -177,3 +177,3 @@ track = track.sort(function (a, b) { return a.absoluteTime - b.absoluteTime; });
         });
-        // end of track
+        // End of track.
         track.push({
@@ -186,6 +186,6 @@ deltaTime: 0,
     });
-    // return midiData
-    return new Uint8Array(midi_file_1.writeMidi(midiData));
+    // Rreturn `midiData`.
+    return new Uint8Array((0, midi_file_1.writeMidi)(midiData));
 }
 exports.encode = encode;
 //# sourceMappingURL=Encode.js.map

dist/Encode.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"Encode.js","sourceRoot":"","sources":["../src/Encode.ts"],"names":[],"mappings":";;;;;;;;;;;;AAAA,uCAAsC;AAUtC,mCAA0G;AAO1G,+CAAwC;AAKxC,SAAS,UAAU,CAAC,IAAU,EAAE,OAAe;IAI9C,OAAO,CAAC;YACP,YAAY,EAAE,IAAI,CAAC,KAAK;YACxB,OAAO,SAAA;YACP,SAAS,EAAE,CAAC;YACZ,UAAU,EAAE,IAAI,CAAC,IAAI;YACrB,IAAI,EAAE,QAAQ;YACd,QAAQ,EAAE,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,QAAQ,GAAG,GAAG,CAAC;SACzC;QACD;YACC,YAAY,EAAE,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,aAAa;YAC7C,OAAO,SAAA;YACP,SAAS,EAAE,CAAC;YACZ,UAAU,EAAE,IAAI,CAAC,IAAI;YACrB,IAAI,EAAE,SAAS;YACf,QAAQ,EAAE,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,eAAe,GAAG,GAAG,CAAC;SAChD,CAAC,CAAC;AACJ,CAAC;AAED,SAAS,WAAW,CAAC,KAAY;IAChC,OAAO,IAAA,uBAAO,EAAC,KAAK,CAAC,KAAK,CAAC,GAAG,CAAC,UAAA,IAAI,IAAI,OAAA,UAAU,CAAC,IAAI,EAAE,KAAK,CAAC,OAAO,CAAC,EAA/B,CAA+B,CAAC,CAAyD,CAAC;AAClI,CAAC;AAED,SAAS,mBAAmB,CAC3B,EAAiB,EACjB,OAAe;IAEf,OAAO;QACN,YAAY,EAAE,EAAE,CAAC,KAAK;QACtB,OAAO,SAAA;QACP,cAAc,EAAE,EAAE,CAAC,MAAM;QACzB,SAAS,EAAE,CAAC;QACZ,IAAI,EAAE,YAAY;QAClB,KAAK,EAAE,IAAI,CAAC,KAAK,CAAC,EAAE,CAAC,KAAK,GAAG,GAAG,CAAC;KACjC,CAAC;AACH,CAAC;AAED,SAAS,oBAAoB,CAAC,KAAY;IACzC,IAAM,cAAc,GAA0B,EAAE,CAAC;IACjD,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,GAAG,EAAE,CAAC,EAAE,EAAE;QAC7B,IAAI,KAAK,CAAC,cAAc,CAAC,cAAc,CAAC,CAAC,CAAC,EAAE;YAC3C,KAAK,CAAC,cAAc,CAAC,CAAC,CAAC,CAAC,OAAO,CAAC,UAAC,EAAiB;gBACjD,cAAc,CAAC,IAAI,CAAC,mBAAmB,CAAC,EAAE,EAAE,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC;YAC7D,CAAC,CAAC,CAAC;SACH;KACD;IACD,OAAO,cAAc,CAAC;AACvB,CAAC;AAED,SAAS,eAAe,CACvB,EAAa,EACb,OAAe;IAEf,OAAO;QACN,YAAY,EAAE,EAAE,CAAC,KAAK;QACtB,OAAO,SAAA;QACP,SAAS,EAAE,CAAC;QACZ,IAAI,EAAE,WAAW;QACjB,KAAK,EAAE,EAAE,CAAC,KAAK;KACf,CAAC;AACH,CAAC;AAED,SAAS,gBAAgB,CAAC,KAAY;IACrC,IAAM,UAAU,GAAyB,EAAE,CAAC;IAC5C,KAAK,CAAC,UAAU,CAAC,OAAO,CAAC,UAAC,EAAa;QACtC,UAAU,CAAC,IAAI,CAAC,eAAe,CAAC,EAAE,EAAE,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC;IACrD,CAAC,CAAC,CAAC;IACH,OAAO,UAAU,CAAC;AACnB,CAAC;AAED,SAAS,gBAAgB,CAAC,KAAY;IACrC,OAAO;QACN,YAAY,EAAE,CAAC;QACf,OAAO,EAAE,KAAK,CAAC,OAAO;QACtB,SAAS,EAAE,CAAC;QACZ,aAAa,EAAE,KAAK,CAAC,UAAU,CAAC,MAAM;QACtC,IAAI,EAAE,eAAe;KACrB,CAAC;AACH,CAAC;AAED,SAAS,eAAe,CAAC,IAAY;IACpC,OAAO;QACN,YAAY,EAAE,CAAC;QACf,SAAS,EAAE,CAAC;QACZ,IAAI,EAAE,IAAI;QACV,IAAI,EAAE,IAAI;QACV,IAAI,EAAE,WAAW;KACjB,CAAC;AACH,CAAC;AAED,SAAS,WAAW,CAAC,KAAiB;IACrC,OAAO;QACN,YAAY,EAAE,KAAK,CAAC,KAAK;QACzB,SAAS,EAAE,CAAC;QACZ,IAAI,EAAE,IAAI;QACV,mBAAmB,EAAE,IAAI,CAAC,KAAK,CAAC,QAAQ,GAAG,KAAK,CAAC,GAAG,CAAC;QACrD,IAAI,EAAE,UAAU;KAChB,CAAC;AACH,CAAC;AAED,SAAS,mBAAmB,CAAC,OAA2B;IACvD,OAAO;QACN,YAAY,EAAE,OAAO,CAAC,KAAK;QAC3B,SAAS,EAAE,CAAC;QACZ,WAAW,EAAE,OAAO,CAAC,aAAa,CAAC,CAAC,CAAC;QACrC,IAAI,EAAE,IAAI;QACV,SAAS,EAAE,EAAE;QACb,SAAS,EAAE,OAAO,CAAC,aAAa,CAAC,CAAC,CAAC;QACnC,aAAa,EAAE,CAAC;QAChB,IAAI,EAAE,eAAe;KACrB,CAAC;AACH,CAAC;AAED,+BAA+B;AAE/B,SAAS,kBAAkB,CAAC,MAAyB;IACpD,IAAM,QAAQ,GAAG,yBAAgB,CAAC,OAAO,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC;IACtD,OAAO;QACN,YAAY,EAAE,MAAM,CAAC,KAAK;QAC1B,SAAS,EAAE,CAAC;QACZ,GAAG,EAAE,QAAQ,GAAG,CAAC;QACjB,IAAI,EAAE,IAAI;QACV,KAAK,EAAE,MAAM,CAAC,KAAK,KAAK,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;QACvC,IAAI,EAAE,cAAc;KACpB,CAAC;AACH,CAAC;AAED,SAAS,UAAU,CAClB,SAA2C;IAE3C,OAAO;QACN,YAAY,EAAE,SAAS,CAAC,KAAK;QAC7B,SAAS,EAAE,CAAC;QACZ,IAAI,EAAE,IAAI;QACV,IAAI,EAAE,SAAS,CAAC,IAAI;QACpB,IAAI,EAAE,SAAS,CAAC,IAAI;KACkB,CAAC;AACzC,CAAC;AAED;;GAEG;AACH,SAAgB,MAAM,CAAC,IAAU;IAChC,IAAM,QAAQ,GAAa;QAC1B,MAAM,EAAE;YACP,MAAM,EAAE,CAAC;YACT,SAAS,EAAE,IAAI,CAAC,MAAM,CAAC,MAAM,GAAG,CAAC;YACjC,YAAY,EAAE,IAAI,CAAC,MAAM,CAAC,GAAG;SAC7B;QACD,MAAM;;gBAEJ,iBAAiB;gBACjB;oBACC,YAAY,EAAE,CAAC;oBACf,SAAS,EAAE,CAAC;oBACZ,IAAI,EAAE,IAAI;oBACV,IAAI,EAAE,IAAI,CAAC,MAAM,CAAC,IAAI;oBACtB,IAAI,EAAE,WAAW;iBACK;eACpB,IAAI,CAAC,MAAM,CAAC,aAAa,CAAC,GAAG,CAAC,UAAA,MAAM,IAAI,OAAA,kBAAkB,CAAC,MAAM,CAAC,EAA1B,CAA0B,CAAC,SAEnE,IAAI,CAAC,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,UAAA,CAAC,IAAI,OAAA,UAAU,CAAC,CAAC,CAAC,EAAb,CAAa,CAAC,SAExC,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC,GAAG,CAAC,UAAA,KAAK,IAAI,OAAA,WAAW,CAAC,KAAK,CAAC,EAAlB,CAAkB,CAAC,SAEnD,IAAI,CAAC,MAAM,CAAC,cAAc,CAAC,GAAG,CAAC,UAAA,OAAO,IAAI,OAAA,mBAAmB,CAAC,OAAO,CAAC,EAA5B,CAA4B,CAAC;WAGxE,IAAI,CAAC,MAAM,CAAC,GAAG,CAAC,UAAC,KAAK;YACxB;gBACC,eAAe;gBACf,eAAe,CAAC,KAAK,CAAC,IAAI,CAAC;gBAC3B,iBAAiB;gBACjB,gBAAgB,CAAC,KAAK,CAAC;eAEpB,WAAW,CAAC,KAAK,CAAC,SAElB,oBAAoB,CAAC,KAAK,CAAC,SAE3B,gBAAgB,CAAC,KAAK,CAAC,QACzB;QACH,CAAC,CAAC,OACF;KACD,CAAC;IAEF,iDAAiD;IACjD,QAAQ,CAAC,MAAM,GAAG,QAAQ,CAAC,MAAM,CAAC,GAAG,CAAC,UAAC,KAAuC;QAC7E,KAAK,GAAG,KAAK,CAAC,IAAI,CAAC,UAAC,CAAC,EAAE,CAAC,IAAK,OAAA,CAAC,CAAC,YAAY,GAAG,CAAC,CAAC,YAAY,EAA/B,CAA+B,CAAC,CAAC;QAE9D,IAAI,QAAQ,GAAG,CAAC,CAAC;QACjB,KAAK,CAAC,OAAO,CAAC,UAAA,IAAI;YACjB,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC,YAAY,GAAG,QAAQ,CAAC;YAC9C,QAAQ,GAAG,IAAI,CAAC,YAAY,CAAC;YAC7B,OAAO,IAAI,CAAC,YAAY,CAAC;QAC1B,CAAC,CAAC,CAAC;QAEH,gBAAgB;QAChB,KAAK,CAAC,IAAI,CAAC;YACV,SAAS,EAAE,CAAC;YACZ,IAAI,EAAE,IAAI;YACV,IAAI,EAAE,YAAY;SAC0B,CAAC,CAAC;QAC/C,OAAO,KAAK,CAAC;IACd,CAAC,CAAC,CAAC;IAEH,sBAAsB;IACtB,OAAO,IAAI,UAAU,CAAC,IAAA,qBAAS,EAAC,QAAQ,CAAC,CAAC,CAAC;AAC5C,CAAC;AAjED,wBAiEC"}

dist/Header.d.ts

@@ -1,2 +0,2 @@
-import { MidiData } from "midi-file";
+import type { MidiData } from "midi-file";
 export interface TempoEvent {
@@ -26,22 +26,24 @@ ticks: number;
 export declare const keySignatureKeys: string[];
-/** The parsed midi file header */
+/**
+ * The parsed MIDI file header.
+ */
 export declare class Header {
     /**
-     * The array of all the tempo events
+     * The array of all the tempo events.
      */
     tempos: TempoEvent[];
     /**
-     * The time signatures
+     * The time signatures.
      */
     timeSignatures: TimeSignatureEvent[];
     /**
-     * The time signatures
+     * The time signatures.
      */
     keySignatures: KeySignatureEvent[];
     /**
-     * Additional meta events
+     * Additional meta events.
      */
     meta: MetaEvent[];
     /**
-     * The name of the midi file
+     * The name of the MIDI file;
      */
@@ -56,15 +58,15 @@ name: string;
     /**
-     * Convert ticks into seconds based on the tempo changes
+     * Convert ticks into seconds based on the tempo changes.
      */
     ticksToSeconds(ticks: number): number;
     /**
-     * Convert ticks into measures based off of the time signatures
+     * Convert ticks into measures based off of the time signatures.
      */
     ticksToMeasures(ticks: number): number;
     /**
-     * The number of ticks per quarter note
+     * The number of ticks per quarter note.
      */
     get ppq(): number;
     /**
-     * Convert seconds to ticks based on the tempo events
+     * Convert seconds to ticks based on the tempo events.
      */
@@ -77,3 +79,3 @@ secondsToTicks(seconds: number): number;
     /**
-     * parse a header json object.
+     * Parse a header json object.
      */
@@ -84,3 +86,3 @@ fromJSON(json: HeaderJSON): void;
      * any other tempos currently set and update all of the event timing.
-     * @param bpm The tempo in beats per second
+     * @param bpm The tempo in beats per second.
      */
@@ -87,0 +89,0 @@ setTempo(bpm: number): void;

dist/Header.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.Header = exports.keySignatureKeys = void 0;
 var BinarySearch_1 = require("./BinarySearch");
@@ -25,33 +26,35 @@ var privatePPQMap = new WeakMap();
 ];
-/** The parsed midi file header */
+/**
+ * The parsed MIDI file header.
+ */
 var Header = /** @class */ (function () {
     function Header(midiData) {
-        // look through all the tracks for tempo changes
         var _this = this;
         /**
-         * The array of all the tempo events
+         * The array of all the tempo events.
          */
         this.tempos = [];
         /**
-         * The time signatures
+         * The time signatures.
          */
         this.timeSignatures = [];
         /**
-         * The time signatures
+         * The time signatures.
          */
         this.keySignatures = [];
         /**
-         * Additional meta events
+         * Additional meta events.
          */
         this.meta = [];
         /**
-         * The name of the midi file
+         * The name of the MIDI file;
          */
         this.name = "";
+        // Look through all the tracks for tempo changes.
         privatePPQMap.set(this, 480);
         if (midiData) {
             privatePPQMap.set(this, midiData.header.ticksPerBeat);
-            // check time signature and tempo events from all of the tracks
+            // Check time signature and tempo events from all of the tracks.
             midiData.tracks.forEach(function (track) {
-                return track.forEach(function (event) {
+                track.forEach(function (event) {
                     if (event.meta) {
@@ -83,4 +86,6 @@ if (event.type === "timeSignature") {
             });
-            // check the first track for other relevant data
+            // Check the first track for other relevant data.
+            var firstTrackCurrentTicks_1 = 0; // Used for absolute times.
             midiData.tracks[0].forEach(function (event) {
+                firstTrackCurrentTicks_1 += event.deltaTime;
                 if (event.meta) {
@@ -96,3 +101,3 @@ if (event.type === "trackName") {
                             text: event.text,
-                            ticks: event.absoluteTime,
+                            ticks: firstTrackCurrentTicks_1,
                             type: event.type,
@@ -114,3 +119,3 @@ });
         var lastEventBeats = 0;
-        // make sure it's sorted
+        // Make sure it's sorted;
         this.tempos.sort(function (a, b) { return a.ticks - b.ticks; });
@@ -139,7 +144,7 @@ this.tempos.forEach(function (event, index) {
     /**
-     * Convert ticks into seconds based on the tempo changes
+     * Convert ticks into seconds based on the tempo changes.
      */
     Header.prototype.ticksToSeconds = function (ticks) {
-        // find the relevant position
-        var index = BinarySearch_1.search(this.tempos, ticks);
+        // Find the relevant position.
+        var index = (0, BinarySearch_1.search)(this.tempos, ticks);
         if (index !== -1) {
@@ -152,3 +157,3 @@ var tempo = this.tempos[index];
         else {
-            // assume 120
+            // Assume 120.
             var beats = ticks / this.ppq;
@@ -159,6 +164,6 @@ return (60 / 120) * beats;
     /**
-     * Convert ticks into measures based off of the time signatures
+     * Convert ticks into measures based off of the time signatures.
      */
     Header.prototype.ticksToMeasures = function (ticks) {
-        var index = BinarySearch_1.search(this.timeSignatures, ticks);
+        var index = (0, BinarySearch_1.search)(this.timeSignatures, ticks);
         if (index !== -1) {
@@ -179,3 +184,3 @@ var timeSigEvent = this.timeSignatures[index];
         /**
-         * The number of ticks per quarter note
+         * The number of ticks per quarter note.
          */
@@ -185,11 +190,11 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
     });
     /**
-     * Convert seconds to ticks based on the tempo events
+     * Convert seconds to ticks based on the tempo events.
      */
     Header.prototype.secondsToTicks = function (seconds) {
-        // find the relevant position
-        var index = BinarySearch_1.search(this.tempos, seconds, "time");
+        // Find the relevant position.
+        var index = (0, BinarySearch_1.search)(this.tempos, seconds, "time");
         if (index !== -1) {
@@ -203,3 +208,3 @@ var tempo = this.tempos[index];
         else {
-            // assume 120
+            // Assume 120.
             var beats = seconds / (60 / 120);
@@ -228,7 +233,7 @@ return Math.round(beats * this.ppq);
     /**
-     * parse a header json object.
+     * Parse a header json object.
      */
     Header.prototype.fromJSON = function (json) {
         this.name = json.name;
-        // clone all the attributes
+        // Clone all the attributes.
         this.tempos = json.tempos.map(function (t) { return Object.assign({}, t); });
@@ -248,3 +253,3 @@ this.timeSignatures = json.timeSignatures.map(function (t) {
      * any other tempos currently set and update all of the event timing.
-     * @param bpm The tempo in beats per second
+     * @param bpm The tempo in beats per second.
      */
@@ -251,0 +256,0 @@ Header.prototype.setTempo = function (bpm) {

dist/Header.js.map

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dist/Instrument.d.ts

@@ -1,9 +0,9 @@
-import { MidiTrackData } from "midi-file";
+import type { MidiEvent } from "midi-file";
 import { Track } from "./Track";
 /**
- * Describes the midi instrument of a track
+ * Describes the MIDI instrument of a track.
  */
 export declare class Instrument {
     /**
-     * The instrument number
+     * The instrument number. Defaults to 0.
      */
@@ -15,5 +15,5 @@ number: number;
      */
-    constructor(trackData: MidiTrackData, track: Track);
+    constructor(trackData: MidiEvent[], track: Track);
     /**
-     * The common name of the instrument
+     * The common name of the instrument.
      */
@@ -27,11 +27,11 @@ get name(): string;
     /**
-     * If the instrument is a percussion instrument
+     * If the instrument is a percussion instrument.
      */
     get percussion(): boolean;
     /**
-     * Convert it to JSON form
+     * Convert it to JSON form.
      */
     toJSON(): InstrumentJSON;
     /**
-     * Convert from JSON form
+     * Convert from JSON form.
      */
@@ -41,5 +41,5 @@ fromJSON(json: InstrumentJSON): void;
 export interface InstrumentJSON {
+    family: string;
     number: number;
     name: string;
-    family: string;
 }

dist/Instrument.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.Instrument = void 0;
 var InstrumentMaps_1 = require("./InstrumentMaps");
@@ -9,3 +10,3 @@ /**
 /**
- * Describes the midi instrument of a track
+ * Describes the MIDI instrument of a track.
  */
@@ -19,3 +20,3 @@ var Instrument = /** @class */ (function () {
         /**
-         * The instrument number
+         * The instrument number. Defaults to 0.
          */
@@ -27,2 +28,3 @@ this.number = 0;
             var programChange = trackData.find(function (e) { return e.type === "programChange"; });
+            // Set 'number' from 'programNumber' if exists.
             if (programChange) {
@@ -35,3 +37,3 @@ this.number = programChange.programNumber;
         /**
-         * The common name of the instrument
+         * The common name of the instrument.
          */
@@ -52,3 +54,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -68,3 +70,3 @@ });
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -74,3 +76,3 @@ });
         /**
-         * If the instrument is a percussion instrument
+         * If the instrument is a percussion instrument.
          */
@@ -81,7 +83,7 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
     });
     /**
-     * Convert it to JSON form
+     * Convert it to JSON form.
      */
@@ -91,8 +93,8 @@ Instrument.prototype.toJSON = function () {
             family: this.family,
-            name: this.name,
             number: this.number,
+            name: this.name
         };
     };
     /**
-     * Convert from JSON form
+     * Convert from JSON form.
      */
@@ -99,0 +101,0 @@ Instrument.prototype.fromJSON = function (json) {

dist/Instrument.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"Instrument.js","sourceRoot":"","sources":["../src/Instrument.ts"],"names":[],"mappings":";;;AAKA,mDAA+F;AAG/F;;GAEG;AACH,IAAM,eAAe,GAAG,IAAI,OAAO,EAAqB,CAAC;AAEzD;;GAEG;AACH;IAOC;;;OAGG;IACH,oBAAY,SAAsB,EAAE,KAAY;QAThD;;WAEG;QACH,WAAM,GAAG,CAAC,CAAC;QAOV,eAAe,CAAC,GAAG,CAAC,IAAI,EAAE,KAAK,CAAC,CAAC;QACjC,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC;QAEhB,IAAI,SAAS,EAAE;YACd,IAAM,aAAa,GAAG,SAAS,CAAC,IAAI,CACnC,UAAA,CAAC,IAAI,OAAA,CAAC,CAAC,IAAI,KAAK,eAAe,EAA1B,CAA0B,CACL,CAAC;YAE5B,+CAA+C;YAC/C,IAAI,aAAa,EAAE;gBAClB,IAAI,CAAC,MAAM,GAAG,aAAa,CAAC,aAAa,CAAC;aAC1C;SACD;IACF,CAAC;IAKD,sBAAI,4BAAI;QAHR;;WAEG;aACH;YACC,IAAI,IAAI,CAAC,UAAU,EAAE;gBACpB,OAAO,iCAAgB,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;aACrC;iBAAM;gBACN,OAAO,oCAAmB,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;aACxC;QACF,CAAC;aAED,UAAS,CAAS;YACjB,IAAM,WAAW,GAAG,oCAAmB,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC;YACnD,IAAI,WAAW,KAAK,CAAC,CAAC,EAAE;gBACvB,IAAI,CAAC,MAAM,GAAG,WAAW,CAAC;aAC1B;QACF,CAAC;;;OAPA;IAYD,sBAAI,8BAAM;QAHV;;WAEG;aACH;YACC,IAAI,IAAI,CAAC,UAAU,EAAE;gBACpB,OAAO,OAAO,CAAC;aACf;iBAAM;gBACN,OAAO,qCAAoB,CAAC,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC;aACzD;QACF,CAAC;;;OAAA;IAKD,sBAAI,kCAAU;QAHd;;WAEG;aACH;YACC,IAAM,KAAK,GAAG,eAAe,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;YACxC,OAAO,KAAK,CAAC,OAAO,KAAK,CAAC,CAAC;QAC5B,CAAC;;;OAAA;IAED;;OAEG;IACH,2BAAM,GAAN;QACC,OAAO;YACN,MAAM,EAAE,IAAI,CAAC,MAAM;YACnB,MAAM,EAAE,IAAI,CAAC,MAAM;YACnB,IAAI,EAAE,IAAI,CAAC,IAAI;SACf,CAAC;IACH,CAAC;IAED;;OAEG;IACH,6BAAQ,GAAR,UAAS,IAAoB;QAC5B,IAAI,CAAC,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC;IAC3B,CAAC;IACF,iBAAC;AAAD,CAAC,AAjFD,IAiFC;AAjFY,gCAAU"}

dist/InstrumentMaps.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.DrumKitByPatchID = exports.InstrumentFamilyByID = exports.instrumentByPatchID = void 0;
 exports.instrumentByPatchID = [
@@ -4,0 +5,0 @@ "acoustic grand piano",

dist/InstrumentMaps.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"InstrumentMaps.js","sourceRoot":"","sources":["../src/InstrumentMaps.ts"],"names":[],"mappings":";;;AAAa,QAAA,mBAAmB,GAAG;IAClC,sBAAsB;IACtB,uBAAuB;IACvB,sBAAsB;IACtB,kBAAkB;IAClB,kBAAkB;IAClB,kBAAkB;IAClB,aAAa;IACb,OAAO;IACP,SAAS;IACT,cAAc;IACd,WAAW;IACX,YAAY;IACZ,SAAS;IACT,WAAW;IACX,eAAe;IACf,UAAU;IACV,eAAe;IACf,kBAAkB;IAClB,YAAY;IACZ,cAAc;IACd,YAAY;IACZ,WAAW;IACX,WAAW;IACX,iBAAiB;IACjB,yBAAyB;IACzB,yBAAyB;IACzB,wBAAwB;IACxB,yBAAyB;IACzB,yBAAyB;IACzB,mBAAmB;IACnB,mBAAmB;IACnB,kBAAkB;IAClB,eAAe;IACf,wBAAwB;IACxB,sBAAsB;IACtB,eAAe;IACf,aAAa;IACb,aAAa;IACb,cAAc;IACd,cAAc;IACd,QAAQ;IACR,OAAO;IACP,OAAO;IACP,YAAY;IACZ,iBAAiB;IACjB,mBAAmB;IACnB,iBAAiB;IACjB,SAAS;IACT,mBAAmB;IACnB,mBAAmB;IACnB,gBAAgB;IAChB,gBAAgB;IAChB,YAAY;IACZ,YAAY;IACZ,aAAa;IACb,eAAe;IACf,SAAS;IACT,UAAU;IACV,MAAM;IACN,eAAe;IACf,aAAa;IACb,eAAe;IACf,cAAc;IACd,cAAc;IACd,aAAa;IACb,UAAU;IACV,WAAW;IACX,cAAc;IACd,MAAM;IACN,cAAc;IACd,SAAS;IACT,UAAU;IACV,SAAS;IACT,OAAO;IACP,UAAU;IACV,WAAW;IACX,cAAc;IACd,YAAY;IACZ,SAAS;IACT,SAAS;IACT,iBAAiB;IACjB,mBAAmB;IACnB,mBAAmB;IACnB,gBAAgB;IAChB,kBAAkB;IAClB,gBAAgB;IAChB,iBAAiB;IACjB,sBAAsB;IACtB,iBAAiB;IACjB,cAAc;IACd,mBAAmB;IACnB,eAAe;IACf,eAAe;IACf,kBAAkB;IAClB,cAAc;IACd,eAAe;IACf,aAAa;IACb,mBAAmB;IACnB,gBAAgB;IAChB,mBAAmB;IACnB,mBAAmB;IACnB,gBAAgB;IAChB,eAAe;IACf,eAAe;IACf,OAAO;IACP,OAAO;IACP,UAAU;IACV,MAAM;IACN,SAAS;IACT,UAAU;IACV,QAAQ;IACR,QAAQ;IACR,aAAa;IACb,OAAO;IACP,aAAa;IACb,WAAW;IACX,YAAY;IACZ,aAAa;IACb,YAAY;IACZ,gBAAgB;IAChB,mBAAmB;IACnB,cAAc;IACd,UAAU;IACV,YAAY;IACZ,gBAAgB;IAChB,YAAY;IACZ,UAAU;IACV,SAAS;CACT,CAAC;AAEW,QAAA,oBAAoB,GAAG;IACnC,OAAO;IACP,sBAAsB;IACtB,OAAO;IACP,QAAQ;IACR,MAAM;IACN,SAAS;IACT,UAAU;IACV,OAAO;IACP,MAAM;IACN,MAAM;IACN,YAAY;IACZ,WAAW;IACX,eAAe;IACf,OAAO;IACP,YAAY;IACZ,eAAe;CACf,CAAC;AAEW,QAAA,gBAAgB,GAAG;IAC/B,CAAC,EAAE,cAAc;IACjB,CAAC,EAAE,UAAU;IACb,EAAE,EAAE,WAAW;IACf,EAAE,EAAE,gBAAgB;IACpB,EAAE,EAAE,YAAY;IAChB,EAAE,EAAE,UAAU;IACd,EAAE,EAAE,WAAW;IACf,EAAE,EAAE,eAAe;IACnB,EAAE,EAAE,cAAc;CAClB,CAAC"}

dist/Midi.d.ts

 import { Header, HeaderJSON } from "./Header";
 import { Track, TrackJSON } from "./Track";
 /**
- * The main midi parsing class
+ * The main midi parsing class.
  */
@@ -9,4 +9,4 @@ export declare class Midi {
      * Download and parse the MIDI file. Returns a promise
-     * which resolves to the generated midi file
-     * @param url The url to fetch
+     * which resolves to the generated MIDI file.
+     * @param url The URL to fetch.
      */
@@ -27,3 +27,3 @@ static fromUrl(url: string): Promise<Midi>;
     /**
-     * The name of the midi file, taken from the first track
+     * The name of the midi file, taken from the first track.
      */
@@ -33,19 +33,19 @@ get name(): string;
     /**
-     * The total length of the file in seconds
+     * The total length of the file in seconds.
      */
     get duration(): number;
     /**
-     * The total length of the file in ticks
+     * The total length of the file in ticks.
      */
     get durationTicks(): number;
     /**
-     * Add a track to the midi file
+     * Add a track to the MIDI file.
      */
     addTrack(): Track;
     /**
-     * Encode the midi as a Uint8Array.
+     * Encode the MIDI as a Uint8Array.
      */
     toArray(): Uint8Array;
     /**
-     * Convert the midi object to JSON.
+     * Convert the MIDI object to JSON.
      */
@@ -59,3 +59,3 @@ toJSON(): MidiJSON;
     /**
-     * Clone the entire object midi object
+     * Clone the entire object MIDI object.
      */
@@ -65,3 +65,3 @@ clone(): Midi;
 /**
- * The MIDI data in JSON format
+ * The MIDI data in JSON format.
  */
@@ -68,0 +68,0 @@ export interface MidiJSON {

dist/Midi.js

@@ -39,8 +39,9 @@ "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.Header = exports.Track = exports.Midi = void 0;
 var midi_file_1 = require("midi-file");
-var Encode_1 = require("./Encode");
 var Header_1 = require("./Header");
 var Track_1 = require("./Track");
+var Encode_1 = require("./Encode");
 /**
- * The main midi parsing class
+ * The main midi parsing class.
  */
@@ -53,10 +54,13 @@ var Midi = /** @class */ (function () {
         var _this = this;
-        // parse the midi data if there is any
+        // Parse the MIDI data if there is any.
         var midiData = null;
         if (midiArray) {
-            if (midiArray instanceof ArrayBuffer) {
-                midiArray = new Uint8Array(midiArray);
-            }
-            midiData = midi_file_1.parseMidi(midiArray);
-            // add the absolute times to each of the tracks
+            // Transform midiArray to ArrayLike<number>
+            // only if it's an ArrayBuffer.
+            var midiArrayLike = midiArray instanceof ArrayBuffer
+                ? new Uint8Array(midiArray)
+                : midiArray;
+            // Parse MIDI data.
+            midiData = (0, midi_file_1.parseMidi)(midiArrayLike);
+            // Add the absolute times to each of the tracks.
             midiData.tracks.forEach(function (track) {
@@ -69,3 +73,3 @@ var currentTicks = 0;
             });
-            // ensure at most one instrument per track
+            // Ensure at most one instrument per track.
             midiData.tracks = splitTracks(midiData.tracks);
@@ -75,7 +79,7 @@ }
         this.tracks = [];
-        // parse the midi data
+        // Parse MIDI data.
         if (midiArray) {
-            // format 0, everything is on the same track
+            // Format 0, everything is on the same track.
             this.tracks = midiData.tracks.map(function (trackData) { return new Track_1.Track(trackData, _this.header); });
-            // if it's format 1 and there are no notes on the first track, remove it
+            // If it's format 1 and there are no notes on the first track, remove it.
             if (midiData.header.format === 1 && this.tracks[0].duration === 0) {
@@ -88,4 +92,4 @@ this.tracks.shift();
      * Download and parse the MIDI file. Returns a promise
-     * which resolves to the generated midi file
-     * @param url The url to fetch
+     * which resolves to the generated MIDI file.
+     * @param url The URL to fetch.
      */
@@ -105,3 +109,3 @@ Midi.fromUrl = function (url) {
                         return [2 /*return*/, new Midi(arrayBuffer)];
-                    case 3: throw new Error("could not load " + url);
+                    case 3: throw new Error("Could not load '".concat(url, "'"));
                 }
@@ -113,3 +117,3 @@ });
         /**
-         * The name of the midi file, taken from the first track
+         * The name of the midi file, taken from the first track.
          */
@@ -122,3 +126,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -128,10 +132,10 @@ });
         /**
-         * The total length of the file in seconds
+         * The total length of the file in seconds.
          */
         get: function () {
-            // get the max of the last note of all the tracks
+            // Get the max of the last note of all the tracks.
             var durations = this.tracks.map(function (t) { return t.duration; });
             return Math.max.apply(Math, durations);
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -141,14 +145,14 @@ });
         /**
-         * The total length of the file in ticks
+         * The total length of the file in ticks.
          */
         get: function () {
-            // get the max of the last note of all the tracks
+            // Get the max of the last note of all the tracks.
             var durationTicks = this.tracks.map(function (t) { return t.durationTicks; });
             return Math.max.apply(Math, durationTicks);
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
     });
     /**
-     * Add a track to the midi file
+     * Add a track to the MIDI file.
      */
@@ -161,9 +165,9 @@ Midi.prototype.addTrack = function () {
     /**
-     * Encode the midi as a Uint8Array.
+     * Encode the MIDI as a Uint8Array.
      */
     Midi.prototype.toArray = function () {
-        return Encode_1.encode(this);
+        return (0, Encode_1.encode)(this);
     };
     /**
-     * Convert the midi object to JSON.
+     * Convert the MIDI object to JSON.
      */
@@ -191,3 +195,3 @@ Midi.prototype.toJSON = function () {
     /**
-     * Clone the entire object midi object
+     * Clone the entire object MIDI object.
      */
@@ -203,5 +207,5 @@ Midi.prototype.clone = function () {
 var Track_2 = require("./Track");
-exports.Track = Track_2.Track;
+Object.defineProperty(exports, "Track", { enumerable: true, get: function () { return Track_2.Track; } });
 var Header_2 = require("./Header");
-exports.Header = Header_2.Header;
+Object.defineProperty(exports, "Header", { enumerable: true, get: function () { return Header_2.Header; } });
 /**
@@ -232,3 +236,3 @@ * Given a list of MIDI tracks, make sure that each channel corresponds to at
                 var program = currentProgram[channel];
-                var trackKey = program + " " + channel;
+                var trackKey = "".concat(program, " ").concat(channel);
                 if (trackMap.has(trackKey)) {
@@ -235,0 +239,0 @@ targetTrack = trackMap.get(trackKey);

dist/Midi.js.map

@@ -1,1 +0,1 @@
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dist/Note.d.ts

 import { Header } from "./Header";
 /**
- * A Note consists of a noteOn and noteOff event
+ * A Note consists of a `noteOn` and `noteOff` event.
  */
 export declare class Note implements NoteInterface {
     /**
-     * The notes midi value
+     * The notes MIDI value.
      */
     midi: number;
     /**
-     * The normalized velocity (0-1)
+     * The normalized velocity (0-1).
      */
     velocity: number;
     /**
-     * The velocity of the note off
+     * The velocity of the note off.
      */
     noteOffVelocity: number;
     /**
-     * The start time in ticks
+     * The start time in ticks.
      */
     ticks: number;
     /**
-     * The duration in ticks
+     * The duration in ticks.
      */
@@ -28,3 +28,3 @@ durationTicks: number;
     /**
-     * The note name and octave in scientific pitch notation, e.g. "C4"
+     * The note name and octave in scientific pitch notation, e.g. "C4".
      */
@@ -34,3 +34,3 @@ get name(): string;
     /**
-     * The notes octave number
+     * The notes octave number.
      */
@@ -40,3 +40,3 @@ get octave(): number;
     /**
-     * The pitch class name. e.g. "A"
+     * The pitch class name. e.g. "A".
      */
@@ -46,3 +46,3 @@ get pitch(): string;
     /**
-     * The duration of the segment in seconds
+     * The duration of the segment in seconds.
      */
@@ -52,3 +52,3 @@ get duration(): number;
     /**
-     * The time of the event in seconds
+     * The time of the event in seconds.
      */
@@ -59,3 +59,3 @@ get time(): number;
      * The number of measures (and partial measures) to this beat.
-     * Takes into account time signature changes
+     * Takes into account time signature changes.
      * @readonly
@@ -62,0 +62,0 @@ */

dist/Note.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.Note = void 0;
 /**
- * Convert a midi note into a pitch
+ * Convert a MIDI note into a pitch.
  */
@@ -11,3 +12,3 @@ function midiToPitch(midi) {
 /**
- * Convert a midi note to a pitch class (just the pitch no octave)
+ * Convert a MIDI note to a pitch class (just the pitch no octave).
  */
@@ -20,3 +21,3 @@ function midiToPitchClass(midi) {
 /**
- * Convert a pitch class to a MIDI note
+ * Convert a pitch class to a MIDI note.
  */
@@ -28,3 +29,3 @@ function pitchClassToMidi(pitch) {
 /**
- * Convert a pitch to a midi number
+ * Convert a pitch to a MIDI number.
  */
@@ -54,3 +55,3 @@ // tslint:disable-next-line: only-arrow-functions typedef
 /**
- * A Note consists of a noteOn and noteOff event
+ * A Note consists of a `noteOn` and `noteOff` event.
  */
@@ -68,3 +69,3 @@ var Note = /** @class */ (function () {
         /**
-         * The note name and octave in scientific pitch notation, e.g. "C4"
+         * The note name and octave in scientific pitch notation, e.g. "C4".
          */
@@ -77,3 +78,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -83,3 +84,3 @@ });
         /**
-         * The notes octave number
+         * The notes octave number.
          */
@@ -93,3 +94,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -99,3 +100,3 @@ });
         /**
-         * The pitch class name. e.g. "A"
+         * The pitch class name. e.g. "A".
          */
@@ -108,3 +109,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -114,3 +115,3 @@ });
         /**
-         * The duration of the segment in seconds
+         * The duration of the segment in seconds.
          */
@@ -126,3 +127,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -132,3 +133,3 @@ });
         /**
-         * The time of the event in seconds
+         * The time of the event in seconds.
          */
@@ -143,3 +144,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -150,3 +151,3 @@ });
          * The number of measures (and partial measures) to this beat.
-         * Takes into account time signature changes
+         * Takes into account time signature changes.
          * @readonly
@@ -158,3 +159,3 @@ */
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -161,0 +162,0 @@ });

dist/Note.js.map

@@ -1,1 +0,1 @@
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dist/PitchBend.d.ts

 import { Header } from "./Header";
 import { MidiPitchBendEvent } from "midi-file";
 /**
- * Represents a pitch bend event
+ * Represents a pitch bend event.
  */
@@ -12,3 +12,3 @@ export declare class PitchBend implements PitchBendInterface {
     /**
-     * The tick time of the event
+     * The tick time of the event.
      */
@@ -20,3 +20,5 @@ ticks: number;
      */
-    constructor(event: Partial<MidiPitchBendEvent>, header: Header);
+    constructor(event: Partial<MidiPitchBendEvent & {
+        absoluteTime: number;
+    }>, header: Header);
     /**
@@ -23,0 +25,0 @@ * The time of the event in seconds

dist/PitchBend.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.PitchBend = void 0;
 var privateHeaderMap = new WeakMap();
 /**
- * Represents a pitch bend event
+ * Represents a pitch bend event.
  */
@@ -29,3 +30,3 @@ var PitchBend = /** @class */ (function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -32,0 +33,0 @@ });

dist/PitchBend.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"PitchBend.js","sourceRoot":"","sources":["../src/PitchBend.ts"],"names":[],"mappings":";;;AAGA,IAAM,gBAAgB,GAAG,IAAI,OAAO,EAAqB,CAAC;AAE1D;;GAEG;AACH;IAYC;;;OAGG;IACH,mBAAY,KAA8D,EAAE,MAAc;QACzF,gBAAgB,CAAC,GAAG,CAAC,IAAI,EAAE,MAAM,CAAC,CAAC;QAEnC,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC,YAAY,CAAC;QAChC,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC,KAAK,CAAC;IAC1B,CAAC;IAKD,sBAAI,2BAAI;QAHR;;WAEG;aACH;YACC,IAAM,MAAM,GAAG,gBAAgB,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;YAC1C,OAAO,MAAM,CAAC,cAAc,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAC1C,CAAC;aAED,UAAS,CAAS;YACjB,IAAM,MAAM,GAAG,gBAAgB,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;YAC1C,IAAI,CAAC,KAAK,GAAG,MAAM,CAAC,cAAc,CAAC,CAAC,CAAC,CAAC;QACvC,CAAC;;;OALA;IAOD,0BAAM,GAAN;QACC,OAAO;YACN,KAAK,EAAE,IAAI,CAAC,KAAK;YACjB,IAAI,EAAE,IAAI,CAAC,IAAI;YACf,KAAK,EAAE,IAAI,CAAC,KAAK;SACjB,CAAC;IACH,CAAC;IACF,gBAAC;AAAD,CAAC,AA3CD,IA2CC;AA3CY,8BAAS"}

dist/Track.d.ts

@@ -1,2 +0,2 @@
-import { MidiTrackData } from "midi-file";
+import type { MidiEvent } from "midi-file";
 import { ControlChangeInterface } from "./ControlChange";
@@ -9,15 +9,15 @@ import { ControlChangesJSON } from "./ControlChanges";
 /**
- * A Track is a collection of notes and controlChanges
+ * A Track is a collection of 'notes' and 'controlChanges'.
  */
 export declare class Track {
     /**
-     * The name of the track
+     * The name of the track.
      */
     name: string;
     /**
-     * The instrument associated with the track
+     * The instrument associated with the track.
      */
     instrument: Instrument;
     /**
-     * The track's note events
+     * The track's note events.
      */
@@ -27,25 +27,25 @@ notes: Note[];
      * The channel number of the track. Applies this channel
-     * to all events associated with the channel
+     * to all events associated with the channel.
      */
     channel: number;
     /**
-     * The control change events
+     * The control change events.
      */
     controlChanges: import("./ControlChanges").ControlChanges;
     /**
-     * The end of track event (if it exists) in ticks
+     * The end of track event (if it exists) in ticks.
      */
     endOfTrackTicks?: number;
     /**
-     * The pitch bend events
+     * The pitch bend events.
      */
     pitchBends: PitchBend[];
-    constructor(trackData: MidiTrackData, header: Header);
+    constructor(trackData: MidiEvent[], header: Header);
     /**
-     * Add a note to the notes array
-     * @param props The note properties to add
+     * Add a note to the notes array.
+     * @param props The note properties to add.
      */
     addNote(props: NoteConstructorInterface): this;
     /**
-     * Add a control change to the track
+     * Add a control change to the track.
      * @param props
@@ -55,19 +55,19 @@ */
     /**
-     * Add a control change to the track
+     * Add a control change to the track.
      */
     addPitchBend(props: Omit<PitchBendInterface, "ticks"> | Omit<PitchBendInterface, "time">): this;
     /**
-     * The end time of the last event in the track
+     * The end time of the last event in the track.
      */
     get duration(): number;
     /**
-     * The end time of the last event in the track in ticks
+     * The end time of the last event in the track in ticks.
      */
     get durationTicks(): number;
     /**
-     * Assign the json values to this track
+     * Assign the JSON values to this track.
      */
     fromJSON(json: TrackJSON): void;
     /**
-     * Convert the track into a JSON format
+     * Convert the track into a JSON format.
      */
@@ -74,0 +74,0 @@ toJSON(): TrackJSON;

dist/Track.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.Track = void 0;
 var BinarySearch_1 = require("./BinarySearch");
@@ -11,3 +12,3 @@ var ControlChange_1 = require("./ControlChange");
 /**
- * A Track is a collection of notes and controlChanges
+ * A Track is a collection of 'notes' and 'controlChanges'.
  */
@@ -18,15 +19,15 @@ var Track = /** @class */ (function () {
         /**
-         * The name of the track
+         * The name of the track.
          */
         this.name = "";
         /**
-         * The track's note events
+         * The track's note events.
          */
         this.notes = [];
         /**
-         * The control change events
+         * The control change events.
          */
-        this.controlChanges = ControlChanges_1.createControlChanges();
+        this.controlChanges = (0, ControlChanges_1.createControlChanges)();
         /**
-         * The pitch bend events
+         * The pitch bend events.
          */
@@ -36,7 +37,9 @@ this.pitchBends = [];
         if (trackData) {
+            // Get the name of the track.
             var nameEvent = trackData.find(function (e) { return e.type === "trackName"; });
+            // Set empty name if 'trackName' event isn't found.
             this.name = nameEvent ? nameEvent.text : "";
         }
         this.instrument = new Instrument_1.Instrument(trackData, this);
-        // defaults to 0
+        // Defaults to 0.
         this.channel = 0;
@@ -48,5 +51,5 @@ if (trackData) {
                 var currentNote = noteOns.shift();
-                // set the channel based on the note
+                // Set the channel based on the note.
                 this_1.channel = currentNote.channel;
-                // find the corresponding note off
+                // Find the corresponding note off.
                 var offIndex = noteOffs.findIndex(function (note) {
@@ -57,3 +60,3 @@ return note.noteNumber === currentNote.noteNumber &&
                 if (offIndex !== -1) {
-                    // once it's got the note off, add it
+                    // Once it's got the note off, add it.
                     var noteOff = noteOffs.splice(offIndex, 1)[0];
@@ -85,3 +88,3 @@ this_1.addNote({
                     ticks: event.absoluteTime,
-                    // scale the value between -2^13 to 2^13 to -2 to 2
+                    // Scale the value between -2^13 to 2^13 to -2 to 2.
                     value: event.value / Math.pow(2, 13),
@@ -100,4 +103,4 @@ });
     /**
-     * Add a note to the notes array
-     * @param props The note properties to add
+     * Add a note to the notes array.
+     * @param props The note properties to add.
      */
@@ -115,7 +118,7 @@ Track.prototype.addNote = function (props) {
         Object.assign(note, props);
-        BinarySearch_1.insert(this.notes, note, "ticks");
+        (0, BinarySearch_1.insert)(this.notes, note, "ticks");
         return this;
     };
     /**
-     * Add a control change to the track
+     * Add a control change to the track.
      * @param props
@@ -133,7 +136,7 @@ */
         }
-        BinarySearch_1.insert(this.controlChanges[cc.number], cc, "ticks");
+        (0, BinarySearch_1.insert)(this.controlChanges[cc.number], cc, "ticks");
         return this;
     };
     /**
-     * Add a control change to the track
+     * Add a control change to the track.
      */
@@ -144,3 +147,3 @@ Track.prototype.addPitchBend = function (props) {
         Object.assign(pb, props);
-        BinarySearch_1.insert(this.pitchBends, pb, "ticks");
+        (0, BinarySearch_1.insert)(this.pitchBends, pb, "ticks");
         return this;
@@ -150,3 +153,3 @@ };
         /**
-         * The end time of the last event in the track
+         * The end time of the last event in the track.
          */
@@ -167,3 +170,3 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
@@ -173,3 +176,3 @@ });
         /**
-         * The end time of the last event in the track in ticks
+         * The end time of the last event in the track in ticks.
          */
@@ -190,7 +193,7 @@ get: function () {
         },
-        enumerable: true,
+        enumerable: false,
         configurable: true
     });
     /**
-     * Assign the json values to this track
+     * Assign the JSON values to this track.
      */
@@ -227,6 +230,6 @@ Track.prototype.fromJSON = function (json) {
     /**
-     * Convert the track into a JSON format
+     * Convert the track into a JSON format.
      */
     Track.prototype.toJSON = function () {
-        // convert all the CCs to JSON
+        // Convert all the CCs to JSON.
         var controlChanges = {};
@@ -233,0 +236,0 @@ for (var i = 0; i < 127; i++) {

dist/Track.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"Track.js","sourceRoot":"","sources":["../src/Track.ts"],"names":[],"mappings":";;;AAWA,+CAAwC;AACxC,iDAAwE;AACxE,mDAA4E;AAC5E,yCAA2E;AAG3E,2CAA0D;AAC1D,+BAAkE;AAElE,IAAM,gBAAgB,GAAG,IAAI,OAAO,EAAiB,CAAC;AAEtD;;GAEG;AACH;IAqCC,eAAY,SAAsB,EAAE,MAAc;QAAlD,iBAyFC;QA7HD;;WAEG;QACH,SAAI,GAAG,EAAE,CAAC;QAOV;;WAEG;QACH,UAAK,GAAW,EAAE,CAAC;QAQnB;;WAEG;QACH,mBAAc,GAAG,IAAA,qCAAoB,GAAE,CAAC;QAOxC;;WAEG;QACH,eAAU,GAAgB,EAAE,CAAC;QAG5B,gBAAgB,CAAC,GAAG,CAAC,IAAI,EAAE,MAAM,CAAC,CAAC;QAEnC,IAAI,SAAS,EAAE;YACd,6BAA6B;YAC7B,IAAM,SAAS,GAAG,SAAS,CAAC,IAAI,CAC/B,UAAC,CAAC,IAAK,OAAA,CAAC,CAAC,IAAI,KAAK,WAAW,EAAtB,CAAsB,CACP,CAAC;YAExB,mDAAmD;YACnD,IAAI,CAAC,IAAI,GAAG,SAAS,CAAC,CAAC,CAAC,SAAS,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC;SAC5C;QAED,IAAI,CAAC,UAAU,GAAG,IAAI,uBAAU,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC;QAElD,iBAAiB;QACjB,IAAI,CAAC,OAAO,GAAG,CAAC,CAAC;QAEjB,IAAI,SAAS,EAAE;YACd,IAAM,OAAO,GAAG,SAAS,CAAC,MAAM,CAC/B,UAAC,KAAK,IAAK,OAAA,KAAK,CAAC,IAAI,KAAK,QAAQ,EAAvB,CAAuB,CACQ,CAAC;YAE5C,IAAM,QAAQ,GAAG,SAAS,CAAC,MAAM,CAChC,UAAC,KAAK,IAAK,OAAA,KAAK,CAAC,IAAI,KAAK,SAAS,EAAxB,CAAwB,CACQ,CAAC;;gBAG5C,IAAM,WAAW,GAAG,OAAO,CAAC,KAAK,EAAE,CAAC;gBAEpC,qCAAqC;gBACrC,OAAK,OAAO,GAAG,WAAW,CAAC,OAAO,CAAC;gBAEnC,mCAAmC;gBACnC,IAAM,QAAQ,GAAG,QAAQ,CAAC,SAAS,CAClC,UAAC,IAAI;oBACJ,OAAA,IAAI,CAAC,UAAU,KAAK,WAAW,CAAC,UAAU;wBAC1C,IAAI,CAAC,YAAY,IAAI,WAAW,CAAC,YAAY;gBAD7C,CAC6C,CAC9C,CAAC;gBAEF,IAAI,QAAQ,KAAK,CAAC,CAAC,EAAE;oBACpB,sCAAsC;oBACtC,IAAM,OAAO,GAAG,QAAQ,CAAC,MAAM,CAAC,QAAQ,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;oBAEhD,OAAK,OAAO,CAAC;wBACZ,aAAa,EACZ,OAAO,CAAC,YAAY,GAAG,WAAW,CAAC,YAAY;wBAChD,IAAI,EAAE,WAAW,CAAC,UAAU;wBAC5B,eAAe,EAAE,OAAO,CAAC,QAAQ,GAAG,GAAG;wBACvC,KAAK,EAAE,WAAW,CAAC,YAAY;wBAC/B,QAAQ,EAAE,WAAW,CAAC,QAAQ,GAAG,GAAG;qBACpC,CAAC,CAAC;iBACH;;;YAzBF,OAAO,OAAO,CAAC,MAAM;;aA0BpB;YAED,IAAM,cAAc,GAAG,SAAS,CAAC,MAAM,CACtC,UAAC,KAAK,IAAK,OAAA,KAAK,CAAC,IAAI,KAAK,YAAY,EAA3B,CAA2B,CACQ,CAAC;YAChD,cAAc,CAAC,OAAO,CAAC,UAAC,KAAK;gBAC5B,KAAI,CAAC,KAAK,CAAC;oBACV,MAAM,EAAE,KAAK,CAAC,cAAc;oBAC5B,KAAK,EAAE,KAAK,CAAC,YAAY;oBACzB,KAAK,EAAE,KAAK,CAAC,KAAK,GAAG,GAAG;iBACxB,CAAC,CAAC;YACJ,CAAC,CAAC,CAAC;YAEH,IAAM,UAAU,GAAG,SAAS,CAAC,MAAM,CAClC,UAAC,KAAK,IAAK,OAAA,KAAK,CAAC,IAAI,KAAK,WAAW,EAA1B,CAA0B,CACQ,CAAC;YAC/C,UAAU,CAAC,OAAO,CAAC,UAAC,KAAK;gBACxB,KAAI,CAAC,YAAY,CAAC;oBACjB,KAAK,EAAE,KAAK,CAAC,YAAY;oBACzB,oDAAoD;oBACpD,KAAK,EAAE,KAAK,CAAC,KAAK,GAAG,IAAI,CAAC,GAAG,CAAC,CAAC,EAAE,EAAE,CAAC;iBACpC,CAAC,CAAC;YACJ,CAAC,CAAC,CAAC;YAEH,IAAM,eAAe,GAEP,SAAS,CAAC,IAAI,CAC3B,UAAC,KAAK;gBACL,OAAA,KAAK,CAAC,IAAI,KAAK,YAAY;YAA3B,CAA2B,CAC5B,CAAC;YAEF,IAAI,CAAC,eAAe;gBACnB,eAAe,KAAK,SAAS;oBAC5B,CAAC,CAAC,eAAe,CAAC,YAAY;oBAC9B,CAAC,CAAC,SAAS,CAAC;SACd;IACF,CAAC;IAED;;;OAGG;IACH,uBAAO,GAAP,UAAQ,KAA+B;QACtC,IAAM,MAAM,GAAG,gBAAgB,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;QAC1C,IAAM,IAAI,GAAG,IAAI,WAAI,CACpB;YACC,IAAI,EAAE,CAAC;YACP,KAAK,EAAE,CAAC;YACR,QAAQ,EAAE,CAAC;SACX,EACD;YACC,KAAK,EAAE,CAAC;YACR,QAAQ,EAAE,CAAC;SACX,EACD,MAAM,CACN,CAAC;QAEF,MAAM,CAAC,MAAM,CAAC,IAAI,EAAE,KAAK,CAAC,CAAC;QAC3B,IAAA,qBAAM,EAAC,IAAI,CAAC,KAAK,EAAE,IAAI,EAAE,OAAO,CAAC,CAAC;QAClC,OAAO,IAAI,CAAC;IACb,CAAC;IAED;;;OAGG;IACH,qBAAK,GAAL,UACC,KAEsC;QAEtC,IAAM,MAAM,GAAG,gBAAgB,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;QAC1C,IAAM,EAAE,GAAG,IAAI,6BAAa,CAC3B;YACC,cAAc,EAAE,KAAK,CAAC,MAAM;SAC5B,EACD,MAAM,CACN,CAAC;QACF,OAAO,KAAK,CAAC,MAAM,CAAC;QACpB,MAAM,CAAC,MAAM,CAAC,EAAE,EAAE,KAAK,CAAC,CAAC;QACzB,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,IAAI,CAAC,cAAc,CAAC,EAAE,CAAC,MAAM,CAAC,CAAC,EAAE;YACnD,IAAI,CAAC,cAAc,CAAC,EAAE,CAAC,MAAM,CAAC,GAAG,EAAE,CAAC;SACpC;QACD,IAAA,qBAAM,EAAC,IAAI,CAAC,cAAc,CAAC,EAAE,CAAC,MAAM,CAAC,EAAE,EAAE,EAAE,OAAO,CAAC,CAAC;QACpD,OAAO,IAAI,CAAC;IACb,CAAC;IAED;;OAEG;IACH,4BAAY,GAAZ,UACC,KAEkC;QAElC,IAAM,MAAM,GAAG,gBAAgB,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;QAC1C,IAAM,EAAE,GAAG,IAAI,qBAAS,CAAC,EAAE,EAAE,MAAM,CAAC,CAAC;QACrC,MAAM,CAAC,MAAM,CAAC,EAAE,EAAE,KAAK,CAAC,CAAC;QACzB,IAAA,qBAAM,EAAC,IAAI,CAAC,UAAU,EAAE,EAAE,EAAE,OAAO,CAAC,CAAC;QACrC,OAAO,IAAI,CAAC;IACb,CAAC;IAKD,sBAAI,2BAAQ;QAHZ;;WAEG;aACH;YACC,IAAI,CAAC,IAAI,CAAC,KAAK,CAAC,MAAM,EAAE;gBACvB,OAAO,CAAC,CAAC;aACT;YAED,IAAI,WAAW,GACd,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,IAAI;gBACtC,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,QAAQ,CAAC;YAE5C,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE;gBAC/C,IAAM,QAAQ,GAAG,IAAI,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,IAAI,GAAG,IAAI,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC;gBAC7D,IAAI,WAAW,GAAG,QAAQ,EAAE;oBAC3B,WAAW,GAAG,QAAQ,CAAC;iBACvB;aACD;YAED,OAAO,WAAW,CAAC;QACpB,CAAC;;;OAAA;IAKD,sBAAI,gCAAa;QAHjB;;WAEG;aACH;YACC,IAAI,CAAC,IAAI,CAAC,KAAK,CAAC,MAAM,EAAE;gBACvB,OAAO,CAAC,CAAC;aACT;YAED,IAAI,WAAW,GACd,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,KAAK;gBACvC,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,aAAa,CAAC;YACjD,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE;gBAC/C,IAAM,QAAQ,GAAG,IAAI,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,CAA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package.json

 {
   "name": "@tonejs/midi",
-  "version": "2.0.27",
+  "version": "2.0.28",
   "description": "Convert binary midi into JSON",
@@ -10,3 +10,3 @@ "main": "build/Midi.js",
   "scripts": {
-    "build": "tsc && webpack -p --mode=production",
+    "build": "tsc && webpack --mode=production",
     "codecov": "nyc report --reporter=text-lcov > coverage.lcov && codecov",
@@ -44,25 +44,25 @@ "docs": "typedoc",
     "@types/mocha": "^8.0.1",
-    "@types/node": "^11.9.3",
-    "@typescript-eslint/eslint-plugin": "^2.6.0",
-    "@typescript-eslint/parser": "^2.6.0",
+    "@types/node": "^14.18.9",
+    "@typescript-eslint/eslint-plugin": "^5.10.0",
+    "@typescript-eslint/parser": "^5.10.0",
     "chai": "^4.2.0",
     "codecov": "^3.2.0",
-    "eslint": "^6.6.0",
-    "glob": "^7.1.3",
-    "http-server": "^0.12.3",
+    "eslint": "^8.7.0",
+    "glob": "^7.2.0",
+    "http-server": "^14.1.0",
     "mocha": "^8.1.0",
-    "node-fetch": "^2.3.0",
-    "nyc": "^14.1.1",
+    "node-fetch": "^2.6.7",
+    "nyc": "^15.1.0",
     "semver": "^5.6.0",
     "source-map-support": "^0.5.12",
-    "ts-loader": "^5.4.5",
-    "ts-node": "^8.1.0",
-    "typedoc": "^0.15.0",
-    "typescript": "^3.7.2",
-    "webpack": "^4.44.1",
-    "webpack-cli": "^3.3.12"
+    "ts-loader": "^9.2.6",
+    "ts-node": "^10.4.0",
+    "typedoc": "^0.22.11",
+    "typescript": "^4.5.4",
+    "webpack": "^5.66.0",
+    "webpack-cli": "^4.9.1"
   },
   "dependencies": {
-    "array-flatten": "^2.1.2",
-    "midi-file": "^1.1.2"
+    "array-flatten": "^3.0.0",
+    "midi-file": "^1.2.2"
   },
@@ -69,0 +69,0 @@ "nyc": {

src/BinarySearch.ts

@@ -5,3 +5,3 @@ /**
  */
-export function search(array: any[], value: any, prop= "ticks"): number {
+export function search(array: any[], value: any, prop = "ticks"): number {
 	let beginning = 0;
@@ -8,0 +8,0 @@ const len = array.length;

src/ControlChange.ts

@@ -0,3 +1,3 @@
+import type { MidiControllerEvent } from "midi-file";
 import { Header } from "./Header";
-import { MidiControllerEvent } from "midi-file";
 
@@ -7,3 +7,16 @@ /**
  */
-export type ControlChangeName = "modulationWheel" | "breath" | "footController" | "portamentoTime" | "volume" | "balance" | "pan" | "sustain" | "portamentoTime" | "sostenuto" | "softPedal" | "legatoFootswitch" | "portamentoControl";
+export type ControlChangeName =
+	| "modulationWheel"
+	| "breath"
+	| "footController"
+	| "portamentoTime"
+	| "volume"
+	| "balance"
+	| "pan"
+	| "sustain"
+	| "portamentoTime"
+	| "sostenuto"
+	| "softPedal"
+	| "legatoFootswitch"
+	| "portamentoControl";
 
@@ -64,3 +77,3 @@ interface ControlChangeMap {
 	 */
-	constructor(event: Partial<MidiControllerEvent>, header: Header) {
+	constructor(event: Partial<MidiControllerEvent & { absoluteTime: number }>, header: Header) {
 		privateHeaderMap.set(this, header);
@@ -67,0 +80,0 @@ privateCCNumberMap.set(this, event.controllerType);

src/Encode.ts

@@ -1,14 +0,27 @@
-import { MidiPitchBendEvent, writeMidi } from "midi-file";
-import { MidiControllerEvent, MidiData, MidiEndOfTrackEvent,
-	MidiInstrumentEvent, MidiKeySignatureEvent, MidiNoteOffEvent,
-	MidiNoteOnEvent, MidiTempoEvent, MidiTextEvent, MidiTimeSignatureEvent, MidiTrackNameEvent } from "midi-file";
+import { writeMidi } from "midi-file";
+
+import type {
+	MidiControllerEvent, MidiData, MidiEndOfTrackEvent,
+	MidiEvent, MidiKeySignatureEvent,
+	MidiNoteOffEvent, MidiNoteOnEvent, MidiPitchBendEvent,
+	MidiProgramChangeEvent, MidiSetTempoEvent, MidiTextEvent,
+	MidiTimeSignatureEvent, MidiTrackNameEvent
+} from "midi-file";
+
+import { KeySignatureEvent, keySignatureKeys, MetaEvent, TempoEvent, TimeSignatureEvent } from "./Header";
 import { ControlChange } from "./ControlChange";
 import { PitchBend } from "./PitchBend";
-import { KeySignatureEvent, keySignatureKeys, MetaEvent, TempoEvent, TimeSignatureEvent } from "./Header";
 import { Midi } from "./Midi";
 import { Note } from "./Note";
 import { Track } from "./Track";
-import flatten from "array-flatten";
 
-function encodeNote(note: Note, channel: number): [MidiNoteOnEvent, MidiNoteOffEvent] {
+import { flatten } from "array-flatten";
+
+/** Used to add `absoluteTime` property. */
+type WithAbsoluteTime = { absoluteTime: number };
+
+function encodeNote(note: Note, channel: number): [
+	(MidiNoteOnEvent & WithAbsoluteTime),
+	(MidiNoteOffEvent & WithAbsoluteTime)
+] {
 	return [{
@@ -36,3 +49,6 @@ absoluteTime: note.ticks,
 
-function encodeControlChange(cc: ControlChange, channel: number): MidiControllerEvent {
+function encodeControlChange(
+	cc: ControlChange,
+	channel: number
+): (MidiControllerEvent & WithAbsoluteTime) {
 	return {
@@ -60,3 +76,6 @@ absoluteTime: cc.ticks,
 
-function encodePitchBend(pb: PitchBend, channel: number): MidiPitchBendEvent {
+function encodePitchBend(
+	pb: PitchBend,
+	channel: number
+): (MidiPitchBendEvent & WithAbsoluteTime) {
 	return {
@@ -79,3 +98,3 @@ absoluteTime: pb.ticks,
 
-function encodeInstrument(track: Track): MidiInstrumentEvent {
+function encodeInstrument(track: Track): (MidiProgramChangeEvent & WithAbsoluteTime) {
 	return {
@@ -90,3 +109,3 @@ absoluteTime: 0,
 
-function encodeTrackName(name: string): MidiTrackNameEvent {
+function encodeTrackName(name: string): (MidiTrackNameEvent & WithAbsoluteTime) {
 	return {
@@ -101,3 +120,3 @@ absoluteTime: 0,
 
-function encodeTempo(tempo: TempoEvent): MidiTempoEvent {
+function encodeTempo(tempo: TempoEvent): (MidiSetTempoEvent & WithAbsoluteTime) {
 	return {
@@ -112,3 +131,3 @@ absoluteTime: tempo.ticks,
 
-function encodeTimeSignature(timeSig: TimeSignatureEvent): MidiTimeSignatureEvent {
+function encodeTimeSignature(timeSig: TimeSignatureEvent): (MidiTimeSignatureEvent & WithAbsoluteTime) {
 	return {
@@ -128,3 +147,3 @@ absoluteTime: timeSig.ticks,
 
-function encodeKeySignature(keySig: KeySignatureEvent): MidiKeySignatureEvent {
+function encodeKeySignature(keySig: KeySignatureEvent): (MidiKeySignatureEvent & WithAbsoluteTime) {
 	const keyIndex = keySignatureKeys.indexOf(keySig.key);
@@ -141,3 +160,5 @@ return {
 
-function encodeText(textEvent: MetaEvent): MidiTextEvent {
+function encodeText(
+	textEvent: (MetaEvent & { ticks: number; })
+): (MidiTextEvent & WithAbsoluteTime) {
 	return {
@@ -149,7 +170,7 @@ absoluteTime: textEvent.ticks,
 		type: textEvent.type,
-	} as MidiTextEvent;
+	} as (MidiTextEvent & WithAbsoluteTime);
 }
 
 /**
- * Convert the midi object to an array
+ * Convert the MIDI object to an array.
  */
@@ -165,3 +186,3 @@ export function encode(midi: Midi): Uint8Array {
 			[
-				// the name data
+				// The name data.
 				{
@@ -179,9 +200,9 @@ absoluteTime: 0,
 				...midi.header.tempos.map(tempo => encodeTempo(tempo)),
-				// and the time signature data
+				// and the time signature data.
 				...midi.header.timeSignatures.map(timeSig => encodeTimeSignature(timeSig)),
 			],
-			// the remaining tracks
-			...midi.tracks.map(track => {
+			// The remaining tracks.
+			...midi.tracks.map((track) => {
 				return [
-					// add the name
+					// Add the name
 					encodeTrackName(track.name),
@@ -194,3 +215,3 @@ // the instrument
 					...encodeControlChanges(track),
-					// and the pitch bends
+					// and the pitch bends.
 					...encodePitchBends(track)
@@ -202,5 +223,6 @@ ];
 
-	// sort and set deltaTime of all of the tracks
-	midiData.tracks = midiData.tracks.map(track => {
+	// Sort and set `deltaTime` of all of the tracks.
+	midiData.tracks = midiData.tracks.map((track: (MidiEvent & WithAbsoluteTime)[]) => {
 		track = track.sort((a, b) => a.absoluteTime - b.absoluteTime);
+		
 		let lastTime = 0;
@@ -212,3 +234,4 @@ track.forEach(note => {
 		});
-		// end of track
+
+		// End of track.
 		track.push({
@@ -218,8 +241,8 @@ deltaTime: 0,
 			type: "endOfTrack",
-		} as MidiEndOfTrackEvent);
+		} as (MidiEndOfTrackEvent & WithAbsoluteTime));
 		return track;
 	});
 
-	// return midiData
+	// Rreturn `midiData`.
 	return new Uint8Array(writeMidi(midiData));
 }

src/Header.ts

@@ -1,2 +0,2 @@
-import { MidiData } from "midi-file";
+import type { MidiData, MidiEvent } from "midi-file";
 import { search } from "./BinarySearch";
@@ -51,6 +51,8 @@
 
-/** The parsed midi file header */
+/**
+ * The parsed MIDI file header.
+ */
 export class Header {
 	/**
-	 * The array of all the tempo events
+	 * The array of all the tempo events.
 	 */
@@ -60,3 +62,3 @@ tempos: TempoEvent[] = [];
 	/**
-	 * The time signatures
+	 * The time signatures.
 	 */
@@ -66,3 +68,3 @@ timeSignatures: TimeSignatureEvent[] = [];
 	/**
-	 * The time signatures
+	 * The time signatures.
 	 */
@@ -72,3 +74,3 @@ keySignatures: KeySignatureEvent[] = [];
 	/**
-	 * Additional meta events
+	 * Additional meta events.
 	 */
@@ -78,3 +80,3 @@ meta: MetaEvent[] = [];
 	/**
-	 * The name of the midi file
+	 * The name of the MIDI file;
 	 */
@@ -84,4 +86,3 @@ name = "";
 	constructor(midiData?: MidiData) {
-		// look through all the tracks for tempo changes
-
+		// Look through all the tracks for tempo changes.
 		privatePPQMap.set(this, 480);
@@ -91,5 +92,6 @@
 			privatePPQMap.set(this, midiData.header.ticksPerBeat);
-			// check time signature and tempo events from all of the tracks
-			midiData.tracks.forEach((track) =>
-				track.forEach((event) => {
+			
+			// Check time signature and tempo events from all of the tracks.
+			midiData.tracks.forEach(track => {
+				track.forEach((event: MidiEvent & { absoluteTime: number; meta?: boolean; }) => {
 					if (event.meta) {
@@ -117,6 +119,10 @@ if (event.type === "timeSignature") {
 					}
-				})
-			);
-			// check the first track for other relevant data
-			midiData.tracks[0].forEach((event) => {
+				});
+			});
+
+			// Check the first track for other relevant data.
+			let firstTrackCurrentTicks = 0; // Used for absolute times.
+			midiData.tracks[0].forEach((event: MidiEvent & { meta?: boolean; }) => {
+				firstTrackCurrentTicks += event.deltaTime;
+
 				if (event.meta) {
@@ -133,3 +139,3 @@ if (event.type === "trackName") {
 							text: event.text,
-							ticks: event.absoluteTime,
+							ticks: firstTrackCurrentTicks,
 							type: event.type,
@@ -140,2 +146,3 @@ });
 			});
+
 			this.update();
@@ -152,3 +159,4 @@ }
 		let lastEventBeats = 0;
-		// make sure it's sorted
+
+		// Make sure it's sorted;
 		this.tempos.sort((a, b) => a.ticks - b.ticks);
@@ -160,2 +168,3 @@ this.tempos.forEach((event, index) => {
 			const elapsedSeconds = (60 / lastBPM) * beats;
+
 			event.time = elapsedSeconds + currentTime;
@@ -165,2 +174,3 @@ currentTime = event.time;
 		});
+
 		this.timeSignatures.sort((a, b) => a.ticks - b.ticks);
@@ -172,2 +182,3 @@ this.timeSignatures.forEach((event, index) => {
 					: this.timeSignatures[0];
+
 			const elapsedBeats = (event.ticks - lastEvent.ticks) / this.ppq;
@@ -178,2 +189,3 @@ const elapsedMeasures =
 				(lastEvent.timeSignature[1] / 4);
+
 			lastEvent.measures = lastEvent.measures || 0;
@@ -185,7 +197,8 @@ event.measures = elapsedMeasures + lastEvent.measures;
 	/**
-	 * Convert ticks into seconds based on the tempo changes
+	 * Convert ticks into seconds based on the tempo changes.
 	 */
 	ticksToSeconds(ticks: number): number {
-		// find the relevant position
+		// Find the relevant position.
 		const index = search(this.tempos, ticks);
+
 		if (index !== -1) {
@@ -195,5 +208,6 @@ const tempo = this.tempos[index];
 			const elapsedBeats = (ticks - tempo.ticks) / this.ppq;
+
 			return tempoTime + (60 / tempo.bpm) * elapsedBeats;
 		} else {
-			// assume 120
+			// Assume 120.
 			const beats = ticks / this.ppq;
@@ -205,9 +219,11 @@ return (60 / 120) * beats;
 	/**
-	 * Convert ticks into measures based off of the time signatures
+	 * Convert ticks into measures based off of the time signatures.
 	 */
 	ticksToMeasures(ticks: number): number {
 		const index = search(this.timeSignatures, ticks);
+
 		if (index !== -1) {
 			const timeSigEvent = this.timeSignatures[index];
 			const elapsedBeats = (ticks - timeSigEvent.ticks) / this.ppq;
+
 			return (
@@ -226,3 +242,3 @@ timeSigEvent.measures +
 	/**
-	 * The number of ticks per quarter note
+	 * The number of ticks per quarter note.
 	 */
@@ -234,7 +250,8 @@ get ppq(): number {
 	/**
-	 * Convert seconds to ticks based on the tempo events
+	 * Convert seconds to ticks based on the tempo events.
 	 */
 	secondsToTicks(seconds: number): number {
-		// find the relevant position
+		// Find the relevant position.
 		const index = search(this.tempos, seconds, "time");
+
 		if (index !== -1) {
@@ -245,5 +262,6 @@ const tempo = this.tempos[index];
 			const elapsedBeats = elapsedTime / (60 / tempo.bpm);
+
 			return Math.round(tempo.ticks + elapsedBeats * this.ppq);
 		} else {
-			// assume 120
+			// Assume 120.
 			const beats = seconds / (60 / 120);
@@ -274,7 +292,8 @@ return Math.round(beats * this.ppq);
 	/**
-	 * parse a header json object.
+	 * Parse a header json object.
 	 */
 	fromJSON(json: HeaderJSON): void {
 		this.name = json.name;
-		// clone all the attributes
+		
+		// Clone all the attributes.
 		this.tempos = json.tempos.map((t) => Object.assign({}, t));
@@ -288,2 +307,3 @@ this.timeSignatures = json.timeSignatures.map((t) =>
 		this.meta = json.meta.map((t) => Object.assign({}, t));
+
 		privatePPQMap.set(this, json.ppq);
@@ -296,3 +316,3 @@ this.update();
 	 * any other tempos currently set and update all of the event timing.
-	 * @param bpm The tempo in beats per second
+	 * @param bpm The tempo in beats per second.
 	 */
@@ -299,0 +319,0 @@ setTempo(bpm: number): void {

src/Instrument.ts

@@ -1,2 +0,6 @@
-import { MidiInstrumentEvent, MidiTrackData } from "midi-file";
+import type {
+	MidiEvent,
+	MidiProgramChangeEvent
+} from "midi-file";
+
 import { DrumKitByPatchID, instrumentByPatchID, InstrumentFamilyByID } from "./InstrumentMaps";
@@ -11,3 +15,3 @@ import { Track } from "./Track";
 /**
- * Describes the midi instrument of a track
+ * Describes the MIDI instrument of a track.
  */
@@ -17,3 +21,3 @@ export class Instrument {
 	/**
-	 * The instrument number
+	 * The instrument number. Defaults to 0.
 	 */
@@ -26,8 +30,12 @@ number = 0;
 	 */
-	constructor(trackData: MidiTrackData, track: Track) {
-
+	constructor(trackData: MidiEvent[], track: Track) {
 		privateTrackMap.set(this, track);
 		this.number = 0;
+
 		if (trackData) {
-			const programChange = trackData.find(e => e.type === "programChange") as MidiInstrumentEvent;
+			const programChange = trackData.find(
+				e => e.type === "programChange"
+			) as MidiProgramChangeEvent;
+
+			// Set 'number' from 'programNumber' if exists.
 			if (programChange) {
@@ -40,3 +48,3 @@ this.number = programChange.programNumber;
 	/**
-	 * The common name of the instrument
+	 * The common name of the instrument.
 	 */
@@ -70,3 +78,3 @@ get name(): string {
 	/**
-	 * If the instrument is a percussion instrument
+	 * If the instrument is a percussion instrument.
 	 */
@@ -79,3 +87,3 @@ get percussion(): boolean {
 	/**
-	 * Convert it to JSON form
+	 * Convert it to JSON form.
 	 */
@@ -85,4 +93,4 @@ toJSON(): InstrumentJSON {
 			family: this.family,
-			name: this.name,
 			number: this.number,
+			name: this.name
 		};
@@ -92,3 +100,3 @@ }
 	/**
-	 * Convert from JSON form
+	 * Convert from JSON form.
 	 */
@@ -101,5 +109,5 @@ fromJSON(json: InstrumentJSON): void {
 export interface InstrumentJSON {
+	family: string;
 	number: number;
 	name: string;
-	family: string;
 }

src/Midi.ts

@@ -1,8 +0,14 @@
-import { MidiChannelEvent, MidiTrackData, parseMidi } from "midi-file";
-import { encode } from "./Encode";
+import type {
+	MidiData,
+	MidiEvent
+} from "midi-file";
+
+import { parseMidi } from "midi-file";
+
 import { Header, HeaderJSON } from "./Header";
 import { Track, TrackJSON } from "./Track";
+import { encode } from "./Encode";
 
 /**
- * The main midi parsing class
+ * The main midi parsing class.
  */
@@ -13,4 +19,4 @@ export class Midi {
 	 * Download and parse the MIDI file. Returns a promise
-	 * which resolves to the generated midi file
-	 * @param url The url to fetch
+	 * which resolves to the generated MIDI file.
+	 * @param url The URL to fetch.
 	 */
@@ -23,3 +29,3 @@ static async fromUrl(url: string): Promise<Midi> {
 		} else {
-			throw new Error(`could not load ${url}`);
+			throw new Error(`Could not load '${url}'`);
 		}
@@ -42,15 +48,19 @@ }
 	constructor(midiArray?: (ArrayLike<number> | ArrayBuffer)) {
-
-		// parse the midi data if there is any
-		let midiData = null;
+		// Parse the MIDI data if there is any.
+		let midiData: (MidiData | null) = null;
 		if (midiArray) {
-			if (midiArray instanceof ArrayBuffer) {
-				midiArray = new Uint8Array(midiArray);
-			}
-			midiData = parseMidi(midiArray);
+			// Transform midiArray to ArrayLike<number>
+			// only if it's an ArrayBuffer.
+			const midiArrayLike: ArrayLike<number> = midiArray instanceof ArrayBuffer
+				? new Uint8Array(midiArray)
+				: midiArray;
 
-			// add the absolute times to each of the tracks
+			// Parse MIDI data.
+			midiData = parseMidi(midiArrayLike);
+
+			// Add the absolute times to each of the tracks.
 			midiData.tracks.forEach(track => {
 				let currentTicks = 0;
-				track.forEach(event => {
+
+				track.forEach((event: MidiEvent & { absoluteTime: number; }) => {
 					currentTicks += event.deltaTime;
@@ -61,3 +71,3 @@ event.absoluteTime = currentTicks;
 
-			// ensure at most one instrument per track
+			// Ensure at most one instrument per track.
 			midiData.tracks = splitTracks(midiData.tracks);
@@ -69,8 +79,8 @@ }
 
-		// parse the midi data
+		// Parse MIDI data.
 		if (midiArray) {
-			// format 0, everything is on the same track
+			// Format 0, everything is on the same track.
 			this.tracks = midiData.tracks.map(trackData => new Track(trackData, this.header));
 
-			// if it's format 1 and there are no notes on the first track, remove it
+			// If it's format 1 and there are no notes on the first track, remove it.
 			if (midiData.header.format === 1 && this.tracks[0].duration === 0) {
@@ -83,3 +93,3 @@ this.tracks.shift();
 	/**
-	 * The name of the midi file, taken from the first track
+	 * The name of the midi file, taken from the first track.
 	 */
@@ -89,2 +99,3 @@ get name(): string {
 	}
+
 	set name(n) {
@@ -95,6 +106,6 @@ this.header.name = n;
 	/**
-	 * The total length of the file in seconds
+	 * The total length of the file in seconds.
 	 */
 	get duration(): number {
-		// get the max of the last note of all the tracks
+		// Get the max of the last note of all the tracks.
 		const durations = this.tracks.map(t => t.duration);
@@ -105,6 +116,6 @@ return Math.max(...durations);
 	/**
-	 * The total length of the file in ticks
+	 * The total length of the file in ticks.
 	 */
 	get durationTicks(): number {
-		// get the max of the last note of all the tracks
+		// Get the max of the last note of all the tracks.
 		const durationTicks = this.tracks.map(t => t.durationTicks);
@@ -115,3 +126,3 @@ return Math.max(...durationTicks);
 	/**
-	 * Add a track to the midi file
+	 * Add a track to the MIDI file.
 	 */
@@ -121,2 +132,3 @@ addTrack(): Track {
 		this.tracks.push(track);
+
 		return track;
@@ -126,3 +138,3 @@ }
 	/**
-	 * Encode the midi as a Uint8Array.
+	 * Encode the MIDI as a Uint8Array.
 	 */
@@ -134,3 +146,3 @@ toArray(): Uint8Array {
 	/**
-	 * Convert the midi object to JSON.
+	 * Convert the MIDI object to JSON.
 	 */
@@ -154,2 +166,3 @@ toJSON(): MidiJSON {
 			track.fromJSON(trackJSON);
+
 			return track;
@@ -160,3 +173,3 @@ });
 	/**
-	 * Clone the entire object midi object
+	 * Clone the entire object MIDI object.
 	 */
@@ -166,2 +179,3 @@ clone(): Midi {
 		midi.fromJSON(this.toJSON());
+
 		return midi;
@@ -172,3 +186,3 @@ }
 /**
- * The MIDI data in JSON format
+ * The MIDI data in JSON format.
  */
@@ -188,3 +202,3 @@ export interface MidiJSON {
  */
-function splitTracks(tracks: MidiTrackData[]): MidiTrackData[] {
+function splitTracks(tracks: Array<MidiEvent[]>): Array<MidiEvent[]> {
 	const newTracks = [];
@@ -205,3 +219,3 @@
 			// pair.
-			const channel = (event as MidiChannelEvent).channel;
+			const channel = (event as (MidiEvent & { channel?: number })).channel;
 			if (channel !== undefined) {
@@ -211,4 +225,6 @@ if (event.type === "programChange") {
 				}
+
 				const program = currentProgram[channel];
 				const trackKey = `${program} ${channel}`;
+				
 				if (trackMap.has(trackKey)) {
@@ -225,2 +241,3 @@ targetTrack = trackMap.get(trackKey);
 			}
+
 			newTracks[targetTrack].push(event);
@@ -227,0 +244,0 @@ }

src/Note.ts

@@ -1,6 +0,5 @@
-import { MidiNoteEvent } from "midi-file";
 import { Header } from "./Header";
 
 /**
- * Convert a midi note into a pitch
+ * Convert a MIDI note into a pitch.
  */
@@ -13,3 +12,3 @@ function midiToPitch(midi: number): string {
 /**
- * Convert a midi note to a pitch class (just the pitch no octave)
+ * Convert a MIDI note to a pitch class (just the pitch no octave).
  */
@@ -23,3 +22,3 @@ function midiToPitchClass(midi: number): string {
 /**
- * Convert a pitch class to a MIDI note
+ * Convert a pitch class to a MIDI note.
  */
@@ -32,3 +31,3 @@ function pitchClassToMidi(pitch: string): number {
 /**
- * Convert a pitch to a midi number
+ * Convert a pitch to a MIDI number.
  */
@@ -48,2 +47,3 @@ // tslint:disable-next-line: only-arrow-functions typedef
 	};
+
 	return (note) => {
@@ -61,3 +61,3 @@ const split = regexp.exec(note);
 /**
- * A Note consists of a noteOn and noteOff event
+ * A Note consists of a `noteOn` and `noteOff` event.
  */
@@ -67,3 +67,3 @@ export class Note implements NoteInterface {
 	/**
-	 * The notes midi value
+	 * The notes MIDI value.
 	 */
@@ -73,3 +73,3 @@ midi: number;
 	/**
-	 * The normalized velocity (0-1)
+	 * The normalized velocity (0-1).
 	 */
@@ -79,3 +79,3 @@ velocity: number;
 	/**
-	 * The velocity of the note off
+	 * The velocity of the note off.
 	 */
@@ -85,3 +85,3 @@ noteOffVelocity: number;
 	/**
-	 * The start time in ticks
+	 * The start time in ticks.
 	 */
@@ -91,3 +91,3 @@ ticks: number;
 	/**
-	 * The duration in ticks
+	 * The duration in ticks.
 	 */
@@ -97,3 +97,2 @@ durationTicks: number;
 	constructor(noteOn: NoteOnEvent, noteOff: NoteOffEvent, header: Header) {
-
 		privateHeaderMap.set(this, header);
@@ -113,3 +112,3 @@
 	/**
-	 * The note name and octave in scientific pitch notation, e.g. "C4"
+	 * The note name and octave in scientific pitch notation, e.g. "C4".
 	 */
@@ -125,3 +124,3 @@ get name(): string {
 	/**
-	 * The notes octave number
+	 * The notes octave number.
 	 */
@@ -138,3 +137,3 @@ get octave(): number {
 	/**
-	 * The pitch class name. e.g. "A"
+	 * The pitch class name. e.g. "A".
 	 */
@@ -150,3 +149,3 @@ get pitch(): string {
 	/**
-	 * The duration of the segment in seconds
+	 * The duration of the segment in seconds.
 	 */
@@ -165,3 +164,3 @@ get duration(): number {
 	/**
-	 * The time of the event in seconds
+	 * The time of the event in seconds.
 	 */
@@ -180,3 +179,3 @@ get time(): number {
 	 * The number of measures (and partial measures) to this beat.
-	 * Takes into account time signature changes
+	 * Takes into account time signature changes.
 	 * @readonly
@@ -183,0 +182,0 @@ */

src/PitchBend.ts

@@ -7,3 +7,3 @@ import { Header } from "./Header";
 /**
- * Represents a pitch bend event
+ * Represents a pitch bend event.
  */
@@ -18,3 +18,3 @@ export class PitchBend implements PitchBendInterface {
 	/**
-	 * The tick time of the event
+	 * The tick time of the event.
 	 */
@@ -27,3 +27,3 @@ ticks: number;
 	 */
-	constructor(event: Partial<MidiPitchBendEvent>, header: Header) {
+	constructor(event: Partial<MidiPitchBendEvent & { absoluteTime: number; }>, header: Header) {
 		privateHeaderMap.set(this, header);
@@ -30,0 +30,0 @@

src/Track.ts

@@ -1,10 +0,12 @@
-import {
+import type {
 	MidiControllerEvent,
 	MidiEndOfTrackEvent,
-	MidiNoteOffEvent,
-	MidiNoteOnEvent,
-	MidiPitchBendEvent,
-	MidiTrackData,
-	MidiTrackNameEvent,
+	MidiEvent,
+	MidiNoteOffEvent, MidiNoteOnEvent,
+	MidiPitchBendEvent, MidiTrackNameEvent
 } from "midi-file";
+
+// Used to add `absoluteTime` property to 'MidiEvent's.
+type WithAbsoluteTime = { absoluteTime: number; };
+
 import { insert } from "./BinarySearch";
@@ -22,7 +24,7 @@ import { ControlChange, ControlChangeInterface } from "./ControlChange";
 /**
- * A Track is a collection of notes and controlChanges
+ * A Track is a collection of 'notes' and 'controlChanges'.
  */
 export class Track {
 	/**
-	 * The name of the track
+	 * The name of the track.
 	 */
@@ -32,3 +34,3 @@ name = "";
 	/**
-	 * The instrument associated with the track
+	 * The instrument associated with the track.
 	 */
@@ -38,3 +40,3 @@ instrument: Instrument;
 	/**
-	 * The track's note events
+	 * The track's note events.
 	 */
@@ -45,3 +47,3 @@ notes: Note[] = [];
 	 * The channel number of the track. Applies this channel
-	 * to all events associated with the channel
+	 * to all events associated with the channel.
 	 */
@@ -51,3 +53,3 @@ channel: number;
 	/**
-	 * The control change events
+	 * The control change events.
 	 */
@@ -57,3 +59,3 @@ controlChanges = createControlChanges();
 	/**
-	 * The end of track event (if it exists) in ticks
+	 * The end of track event (if it exists) in ticks.
 	 */
@@ -63,13 +65,16 @@ endOfTrackTicks?: number;
 	/**
-	 * The pitch bend events
+	 * The pitch bend events.
 	 */
 	pitchBends: PitchBend[] = [];
 
-	constructor(trackData: MidiTrackData, header: Header) {
+	constructor(trackData: MidiEvent[], header: Header) {
 		privateHeaderMap.set(this, header);
 
 		if (trackData) {
+			// Get the name of the track.
 			const nameEvent = trackData.find(
 				(e) => e.type === "trackName"
 			) as MidiTrackNameEvent;
+
+			// Set empty name if 'trackName' event isn't found.
 			this.name = nameEvent ? nameEvent.text : "";
@@ -80,3 +85,3 @@ }
 
-		// defaults to 0
+		// Defaults to 0.
 		this.channel = 0;
@@ -87,11 +92,15 @@
 				(event) => event.type === "noteOn"
-			) as MidiNoteOnEvent[];
+			) as (MidiNoteOnEvent & WithAbsoluteTime)[];
+
 			const noteOffs = trackData.filter(
 				(event) => event.type === "noteOff"
-			) as MidiNoteOffEvent[];
+			) as (MidiNoteOffEvent & WithAbsoluteTime)[];
+
 			while (noteOns.length) {
 				const currentNote = noteOns.shift();
-				// set the channel based on the note
+
+				// Set the channel based on the note.
 				this.channel = currentNote.channel;
-				// find the corresponding note off
+
+				// Find the corresponding note off.
 				const offIndex = noteOffs.findIndex(
@@ -102,5 +111,7 @@ (note) =>
 				);
+
 				if (offIndex !== -1) {
-					// once it's got the note off, add it
+					// Once it's got the note off, add it.
 					const noteOff = noteOffs.splice(offIndex, 1)[0];
+
 					this.addNote({
@@ -119,3 +130,3 @@ durationTicks:
 				(event) => event.type === "controller"
-			) as MidiControllerEvent[];
+			) as (MidiControllerEvent & WithAbsoluteTime)[];
 			controlChanges.forEach((event) => {
@@ -131,7 +142,7 @@ this.addCC({
 				(event) => event.type === "pitchBend"
-			) as MidiPitchBendEvent[];
+			) as (MidiPitchBendEvent & WithAbsoluteTime)[];
 			pitchBends.forEach((event) => {
 				this.addPitchBend({
 					ticks: event.absoluteTime,
-					// scale the value between -2^13 to 2^13 to -2 to 2
+					// Scale the value between -2^13 to 2^13 to -2 to 2.
 					value: event.value / Math.pow(2, 13),
@@ -142,5 +153,5 @@ });
 			const endOfTrackEvent:
-			| MidiEndOfTrackEvent
+			| (MidiEndOfTrackEvent & WithAbsoluteTime)
 			| undefined = trackData.find(
-				(event): event is MidiEndOfTrackEvent =>
+				(event): event is (MidiEndOfTrackEvent & WithAbsoluteTime) =>
 					event.type === "endOfTrack"
@@ -157,4 +168,4 @@ );
 	/**
-	 * Add a note to the notes array
-	 * @param props The note properties to add
+	 * Add a note to the notes array.
+	 * @param props The note properties to add.
 	 */
@@ -175,2 +186,3 @@ addNote(props: NoteConstructorInterface): this {
 		);
+
 		Object.assign(note, props);
@@ -182,3 +194,3 @@ insert(this.notes, note, "ticks");
 	/**
-	 * Add a control change to the track
+	 * Add a control change to the track.
 	 * @param props
@@ -208,3 +220,3 @@ */
 	/**
-	 * Add a control change to the track
+	 * Add a control change to the track.
 	 */
@@ -224,3 +236,3 @@ addPitchBend(
 	/**
-	 * The end time of the last event in the track
+	 * The end time of the last event in the track.
 	 */
@@ -235,2 +247,3 @@ get duration(): number {
 			this.notes[this.notes.length - 1].duration;
+
 		for (let i = 0; i < this.notes.length - 1; i++) {
@@ -247,3 +260,3 @@ const duration = this.notes[i].time + this.notes[i].duration;
 	/**
-	 * The end time of the last event in the track in ticks
+	 * The end time of the last event in the track in ticks.
 	 */
@@ -269,3 +282,3 @@ get durationTicks(): number {
 	/**
-	 * Assign the json values to this track
+	 * Assign the JSON values to this track.
 	 */
@@ -277,5 +290,7 @@ fromJSON(json: TrackJSON): void {
 		this.instrument.fromJSON(json.instrument);
+
 		if (json.endOfTrackTicks !== undefined) {
 			this.endOfTrackTicks = json.endOfTrackTicks;
 		}
+
 		for (const number in json.controlChanges) {
@@ -292,2 +307,3 @@ if (json.controlChanges[number]) {
 		}
+
 		json.notes.forEach((n) => {
@@ -304,6 +320,6 @@ this.addNote({
 	/**
-	 * Convert the track into a JSON format
+	 * Convert the track into a JSON format.
 	 */
 	toJSON(): TrackJSON {
-		// convert all the CCs to JSON
+		// Convert all the CCs to JSON.
 		const controlChanges = {};
@@ -310,0 +326,0 @@ for (let i = 0; i < 127; i++) {

src/midi-file.d.ts

-declare module "midi-file" {
-
-	// ////////////////////////////////////////////////////////
-	// THE EVENT TYPES
-	// ////////////////////////////////////////////////////////
-
-	export interface MidiEvent {
-		type: string;
-		deltaTime: number;
-		absoluteTime: number;
-	}
-
-	export interface MidiChannelEvent extends MidiEvent {
-		channel: number;
-		meta?: false;
-	}
-
-	export interface MidiNoteEvent extends MidiChannelEvent {
-		type: string;
-		velocity: number;
-		noteNumber: number;
-		running?: boolean;
-	}
-
-	export interface MidiNoteOnEvent extends MidiNoteEvent {
-		type: "noteOn";
-	}
-
-	export interface MidiNoteOffEvent extends MidiNoteEvent {
-		type: "noteOff";
-	}
-
-	export interface MidiControllerEvent extends MidiChannelEvent {
-		type: "controller";
-		controllerType: number;
-		value: number;
-	}
-
-	export interface MidiInstrumentEvent extends MidiChannelEvent {
-		type: "programChange";
-		programNumber: number;
-	}
-
-	// ////////////////////////////////////////////////////////
-	// META EVENTS
-	// ////////////////////////////////////////////////////////
-
-	export interface MidiMetaEvent extends MidiEvent {
-		meta: true;
-		type: string;
-	}
-
-	export interface MidiTimeSignatureEvent extends MidiMetaEvent {
-		type: "timeSignature";
-		numerator: number;
-		denominator: number;
-		thirtyseconds: number;
-		metronome: number;
-	}
-
-	export interface MidiTempoEvent extends MidiMetaEvent {
-		type: "setTempo";
-		microsecondsPerBeat: number;
-	}
-
-	export interface MidiTrackNameEvent extends MidiMetaEvent {
-		type: "trackName";
-		text: string;
-	}
-
-	export interface MidiEndOfTrackEvent extends MidiMetaEvent {
-		type: "endOfTrack";
-	}
-
-	export interface MidiCopyrightEvent extends MidiMetaEvent {
-		type: "copyrightNotice";
-		text: string;
-	}
-
-	export interface MidiTextEvent extends MidiMetaEvent {
-		type: "text" | "marker" | "lyrics" | "cuePoint";
-		text: string;
-	}
-
-	export interface MidiKeySignatureEvent extends MidiMetaEvent {
-		type: "keySignature";
-		key: number;
-		scale: number;
-	}
-
-	export interface MidiPitchBendEvent extends MidiChannelEvent {
-		type: "pitchBend";
-		value: number;
-	}
-
-	export type MidiTrackEvent = MidiTimeSignatureEvent | MidiTempoEvent | MidiTrackNameEvent | MidiEndOfTrackEvent | MidiNoteOnEvent | MidiNoteOffEvent | MidiControllerEvent | MidiPitchBendEvent | MidiInstrumentEvent | MidiKeySignatureEvent | MidiTextEvent;
-
-	export type MidiTrackData = MidiTrackEvent[];
-
-	export interface MidiData {
-		header: {
-			format: number;
-			ticksPerBeat: number;
-			numTracks: number;
-		};
-		tracks: MidiTrackData[];
-	}
-
-	// //////////////////////////////////////////////////////
-	// EXPORTED METHODS
-	// //////////////////////////////////////////////////////
-	export function parseMidi(midiArray: ArrayLike<number> | ArrayBuffer): MidiData;
-	export function writeMidi(midiData: MidiData): ArrayBuffer;
-}

No alert changes

Worsened metrics

Total package byte prevSize

287668

-0.74%

Number of package files

49

-2%

Lines of code

3918

-0.48%

Dependency changes

• + Added

  array-flatten@3.0.0
  (transitive)

• - Removed

  array-flatten@2.1.2
  (transitive)

• Updated

  array-flatten@^3.0.0

• Updated

  midi-file@^1.2.2