main key button:
turn on/off switch
rhythm speed adjustable
sound level adjustable
8 kinds of instrument sound optional ,including organ, piano,sax,violin,bell,banjo,flute and guitar
4 kinds of drum sound optional
8 kinds style of music rhythm optional , including rock,twist ,tango,disco, waltz,rumba,mash and boss
demo button include 8 songs
eidt button/drun/se …