Super simple music making program. Click the squares to make them play a note when the line passes.
Based on the Yamaha Tenori-on. It's set up with a pentatonic scale (ACDEG) so that it's pretty hard to make something that sounds bad. It's a shame scratch doesn't have some nicer instruments but it would be easy to replace each note with a separate sound file Have a look at this for a nicer version: http://tonematrix.audiotool.com/