message: Clock forwards the caught error
  makes the source of the crash easier to find
diff: @@ -195,7 +195,7 @@ define(["Tone/core/Tone", "Tone/signal/TickSignal", "Tone/core/TimelineState",
  this.ticks++;
  } catch(e){
  this.ticks++;
  - throw new Error(e);
  + throw e;
  }
  }
  }
  