让你可以用 JS 写一首“歌”的库。[在线尝试](http://watilde.github.io/beeplay/)，实例代码： ```javascript var beeplay = require('beeplay') beeplay() .play(null, 2) .play('D#5', 1/4).play('E5', 1/4).play('F#5', 1/2) .play('B5', 1/2).play('D#5', 1/4).play('E5', 1/4) .play('F#5', 1/4).play('B5', 1/4).play('C#6', 1/4).play('D#6', 1/4) .play('C#6', 1/4).play('A#5', 1/4).play('B5', 1/2) .play('F#5', 1/2).play('D#5', 1/4).play('E5', 1/4) .play('F#5', 1/2).play('B5', 1/2) .play('C#6', 1/4).play('A#5', 1/4).play('B5', 1/4).play('C#6', 1/4) .play('E6', 1/4).play('D#6', 1/4).play('E6', 1/4).play('C#6', 1/4); ```