message: no input node on TimelineSignal
  that way nothing could be connected to it which would overwrite its
  computed values
diff: @@ -28,6 +28,9 @@ define(["Tone/core/Tone", "Tone/signal/Signal", "Tone/core/Timeline"], function
  */
  this._initial = this._fromUnits(this._param.value);
  this.value = options.value;
  +
  + //delete the input node
  + delete this.input
  };
  Tone.extend(Tone.TimelineSignal, Tone.Signal);
  