Computer + Music = MIDI

http://www.hk.net/~prs/midi.html MIDI Archieve of Classical

http://nmt.edu/~jefu/notes/notes/notes.html Computer Music

http://www.hike.te.chiba-u.ac.jp/eem/ Computer Music

http://www.eeb.ele.tue.nl/midi/index.html MIDI

http://www.iuma.com/ Background Music