it is really simple. in the piano bit, you click on the letters up the top to play the notes [i actually recorded my piano at home to make those notes!] and in the drums you do the same thing except that you click on the actual instrument to make the noise [and the noise is computer generated, i did not record them ant home]
i recently found out about an app where you can play piano on some sort of an e-keyboard. i thought it would be great if you could create something like that in scratch, and you can!
