此代码完成歌曲库哼唱识别,并能够将哼唱转化为其它乐器的声音回放-This code complete song library humming recognition, and can be converted into other instruments humming sound playback

1. 识别同一个乐器弹奏出的不同音符（基波分析） 2. 识别弹奏出同一个音符的不同乐器（谐波分析）(1. identify the different notes played by the same instrument (fundamental analysis). 2. identify different musical instruments playing the same note (harmonic analysis).)