code: def playToneList(self, playList = None):
          
          if playList == None: return False
          for t in playList:
              self.playTone(t["freq"], t["reps"], t["delay"], t["muteDelay"])
  
          self.stopTone()
          return True
docs: !
          \~english
          Play tone from a tone list
          @param playList a array of tones
          
          \~chinese
          播放音调列表
          @param playList: 音调数组
          
          \~english @note <b>playList</b> format:\n
          \~chinese @note <b>playList</b> 格式:\n
          \~
              <pre>
              [
                {"freq": 440, "reps": 1, "delay": 0.08, "muteDelay": 0.15},
                {"freq": 567, "reps": 3, "delay": 0.08, "muteDelay": 0.15},
                ...
              ]
             </pre>\n
          \~english
          \e delay: >= 0(s) if 0 means do not delay. tone play will be Stop immediately <br>
          \e muteDelay: 0.15 >= 0(s) If 0 means no pause after playing, play the next note immediately
          \~chinese
          \e delay: >= 0（s）如果是 0 意味着不延迟。 音调会立即停止播放 <br>
          \e muteDelay: >= 0（s）如果是 0 表示播放音符结束后没有停顿，立刻播放下一个音符