message: setting gain to 0 initially keeps it from popping
diff: @@ -34,7 +34,7 @@ define(["../core/Tone", "../source/Source", "../source/Oscillator",
  * @type {Tone.Gain}
  * @private
  */
  - this._widthGate = new Tone.Gain();
  + this._widthGate = new Tone.Gain(0);
  /**
  * the sawtooth oscillator
  