I came across an item on YouTube which I found interesting called OscilloFun.
We NBTV-ers are familiar with using oscilloscopes to display NBTV using the X, Y, and Z (or pwm) channels, but it delights me to see that you can create graphics such as 3D boxes and text with what, to the ear, appears to be passable music.
Someone posted a link to a FLAC version of the music (oscillofun.flac). I have converted it to wav and, for those who don't own an oscilloscope and wish to try it, have written a small virtual 'scope to display it on. I also attach a link to a video showing it running on my PC (BTW it will require a modernish PC running windows >= XP).
http://www.youtube.com/watch?v=-zYBRFvO1gQ