Just came across this...

"9 Beet Stretch is Ludwig van Beethoven's 9th symphony stretched to 24 hours, with no pitch distortions. Executed in various versions with either the Snd or the Common Lisp Music software, both made by Bill Schottstaedt."

http://www.park.nl/digidivi/9bs.pls

Sounds to die to if I do say so myself.