message: adding triggerAttackRelease method
  Instrument one does not work with MultiSampler since a note is required
  as the first argument
diff: @@ -148,6 +148,22 @@ define(["Tone/core/Tone", "Tone/instrument/Instrument", "Tone/core/Buffers", "To
  }
  };
  + /**
  + * Invoke the attack phase, then after the duration, invoke the release.
  + * @param {Frequency} note The note to play
  + * @param {Time} duration The time the note should be held
  + * @param {Time=} time When to start the attack
  + * @param {NormalRange} [velocity=1] The velocity of the attack
  + * @return {Tone.MultiSampler} this
  + */
  + Tone.MultiSampler.prototype.triggerAttackRelease = function(note, duration, time, velocity){
  + time = this.toSeconds(time);
  + duration = this.toSeconds(duration);
  + this.triggerAttack(note, time, velocity);
  + this.triggerRelease(note, time + duration);
  + return this;
  + };
  +
  /**
  * Add a note to the sampler.
  * @param {Note|Midi} note The buffer's pitch.
  