*RUN PROJECT IN TURBO MODE* See the Scratch cats play the piano! You can manipulate the sounds of the piano by moving the sliders (Piano1 for the melody line, Piano2 for the harmony line). Press 'space' after moving the slider(s), then press '1', and listen to them play.
There seems to be some trouble with synchronization of scripts, usually when executing the project for the first time, but, from observation, scripts seem to be better synchronized when played a couple of times over, or when downloaded and run in turbo speed single stepping mode (thanks to hmnwilson for the tip). I haven't found a way around this problem yet for online viewers. Song is a shortened version of a personal piano composition I created for the piano, entitled "Melancholy Musicbox" (you may recognize it from a deviantART film called "Revolve", which was also produced by me.) I'm considering to have the Scratch Cats be able to play more than one song (as "Melancholy Musicbox" tends to be kind of annoying after a while ^^;)