Here are two fun sites I haven't linked to before. The first is general math information. Wait! Don't go! It's pretty neat. Do a little browsing and see:

http://mathworld.wolfram.com/

The second is a music generator. It lets you download any generated music you especially like. The site's Terms of Use seem to preclude using the music in BYOND games, but an aspiring composer could still have fun playing around here and getting inspiration.

http://tones.wolfram.com/