message: don't clear the activeVoices array when releasing all
  actives voices will be cleared on it's own
  fixes
diff: @@ -367,12 +367,11 @@ export class PolySynth<Voice extends Monophonic<any> = Synth> extends Instrument
  * Trigger the release portion of all the currently active voices immediately.
  * Useful for silencing the synth.
  */
  - releaseAll(): this {
  - const now = this.now();
  + releaseAll(time?: Time): this {
  + const computedTime = this.toSeconds(time);
  this._activeVoices.forEach(({ voice }) => {
  - voice.triggerRelease(now);
  + voice.triggerRelease(computedTime);
  });
  - this._activeVoices = [];
  return this;
  }
  