说明：  通过一个单一的合成器实现众多乐器和音效的控制。我们要做的工作就是通过一定的方法合成一段不少于30秒的音乐，并流畅播放。设计中主要采用音调幅度调制的方式再现乐曲。
(A number of musical instruments and sound control through a single synthesizer. We work to be done is through the method of synthesis of a period of not less than 30 seconds of music, and smooth playback.The design of the main tone amplitude modulation reproduction of music. )