nst t=this._beatsToUnits(1);return this.valueOf()/t*this._getPPQ()}toSeconds(){return this.valueOf()}toMidi(){return Bi(this.toFrequency())}_now(){return this.context.now()}}function Xi(t,e){return new Zi(Vi(),t,e)}class Yi extends Zi{constructor(){super(...arguments),this.name="Frequency",this.defaultUnits="hz"}static get A4(){return Wi}static set A4(t){!function(t){Wi=t}(t)}_getExpressions(){return Object.assign({},super._getExpressions(),{midi:{regexp:/^(\d+(?:\.\d+)?midi)/,method(t){return"midi"===this.defaultUnits?t:Yi.mtof(t)}},note:{regexp:/^([a-g]{1}(?:b|#|##|x|bb|###|#x|x#|bbb)?)(-?[0-9]+)/i,method(t,e){const s=$i[t.toLowerCase()]+12*(parseInt(e,10)+1);return"midi"===this.defaultUnits?s:Yi.mtof(s)}},tr:{regexp:/^(\d+(?:\.\d+)?):(\d+(?:\.\d+)?):?(\d+(?:\.\d+)?)?/,method(t,e,s){let n=1;return t&&"0"!==t&&(n*=this._beatsToUnits(this._getTimeSignature()*parseFloat(t))),e&&"0"!==e&&(n*=this._beatsToUnits(parseFloat(e))),s&&"0"!==s&&(n*=this._beatsToUnits(parseFloat(s)/4)),n}}})}transpose(t){return new Yi(this.context,this.valueOf()*zi(t))}harmonize(t){return t.map((t=>this.transpose(t)))}toMidi(){return Bi(this.valueOf())}toNote(){const t=this.toFrequency(),e=Math.log2(t/Yi.A4);let s=Math.round(12*e)+57;const n=Math.floor(s/12);return n<0&&(s+=-12*n),Hi[s%12]+n.toString()}toSeconds(){return 1/super.toSeconds()}toTicks(){const t=this._beatsToUnits(1),e=this.valueOf()/t;return Math.floor(e*this._getPPQ())}_noArg(){return 0}_frequencyToUnits(t){return t}_ticksToUnits(t){return 1/(60*t/(this._getBpm()*this._getPPQ()))}_beatsToUnits(t){return 1/super._beatsToUnits(t)}_secondsToUnits(t){return 1/t}static mtof(t){return Gi(t)}static ftom(t){return Bi(t)}}const $i={cbbb:-3,cbb:-2,cb:-1,c:0,"c#":1,cx:2,"c##":2,"c###":3,"cx#":3,"c#x":3,dbbb:-1,dbb:0,db:1,d:2,"d#":3,dx:4,"d##":4,"d###":5,"dx#":5,"d#x":5,ebbb:1,ebb:2,eb:3,e:4,"e#":5,ex:6,"e##":6,"e###":7,"ex#":7,"e#x":7,fbbb:2,fbb:3,fb:4,f:5,"f#":6,fx:7,"f##":7,"f###":8,"fx#":8,"f#x":8,gbbb:4,gbb:5,gb:6,g:7,"g#":8,gx:9,"g##":9,"g###":10,"gx#":10,"g#x":10,abbb:6,abb:7,ab:8,a:9,"a#":10,ax:11,"a##":11,"a###":12,"ax#":12,"a#x":12,bbbb:8,bbb:9,bb:10,b:11,"b#":12,bx:13,"b##":13,"b###":14,"bx#":14,"b#x":14},Hi=["C","C#","D","D#","E","F","F#","G","G#","A","A#","B"];function Ji(t,e){return new Yi(Vi(),t,e)}class Ki extends Zi{constructor(){super(...arguments),this.name="TransportTime"}_now(){return this.context.transport.seconds}}function to(t,e){return new Ki(Vi(),t,e)}class eo extends fi{constructor(){super();const t=ui(eo.getDefaults(),arguments,["context"]);this.defaultContext?this.context=this.defaultContext:this.context=t.context}static getDefaults(){return{context:Vi()}}now(){return this.context.currentTime+this.context.lookAhead}immediate(){return this.context.currentTime}get sampleTime(){return 1/this.context.sampleRate}get blockTime(){return 128/this.context.sampleRate}toSeconds(t){return Yn(t),new Zi(this.context,t).toSeconds()}toFrequency(t){return new Yi(this.context,t).toFrequency()}toTicks(t){return new Ki(this.context,t).toTicks()}_getPartialProperties(t){const e=this.get();return Object.keys(e).forEach((s=>{In(t[s])&&delete e[s]})),e}get(){const t=this.constructor.getDefaults();return Object.keys(t).forEach((e=>{if(Reflect.has(this,e)){const s=this[e];Fn(s)&&Fn(s.value)&&Fn(s.setValueAtTime)?t[e]=s.value:s instanceof eo?t[e]=s._getPartialProperties(t[e]):Ln(s)||Nn(s)||zn(s)||jn(s)?t[e]=s:delete t[e]}})),t}set(t){return Object.keys(t).forEach((e=>{Reflect.has(this,e)&&Fn(this[e])&&(this[e]&&Fn(this[e].value)&&Fn(this[e].setValueAtTime)?this[e].value!==t[e]&&(this[e].value=t[e]):this[e]instanceof eo?this[e].set(t[e]):this[e]=t[e])})),this}}class so extends wi{constructor(t="stopped"){super(),this.name="StateTimeline",this._initial=t,this.setStateAtTime(this._initial,0)}getValueAtTime(t){const e=this.get(t);return null!==e?e.state:this._initial}setStateAtTime(t,e,s){return Un(e,0),this.add(Object.assign({},s,{state:t,time:e})),this}getLastState(t,e){for(let s=this._search(e);s>=0;s--){const e=this._timeline[s];if(e.state===t)return e}}getNextState(t,e){const s=this._search(e);if(-1!==s)for(let e=s;e