Apparently this is a thing, and I suck at it. Fun nonetheless. I have no idea if more songs were published.
(http://i.imgur.com/2FpQabm.png)
Video: http://v.youku.com/v_show/id_XODk1NzQzMjAw.html
Download link: http://pan.baidu.com/s/1sjPWLZ3
Keys: D,F / J,K (and "space" to select)