问题：在日常开发中，一些重要的对外接口，需要加上访问频率限制，android以免造成资损失。
I\'ve keep having an exception thrown, on and on. When i try to make a new Sequencer object, i keep getting the javax.sound.midi.MidiUnavailableException: Audio Device Unavailable exception.
加载中,请稍侯......