message: lookAhead shouldn't be private
diff: @@ -45,7 +45,6 @@ define(["Tone/core/Tone", "Tone/core/Emitter", "Tone/core/Timeline", "Tone/shim/
  * The amount of time events are scheduled
  * into the future
  * @type {Number}
  - * @private
  */
  this.lookAhead = options.lookAhead;
  