You can listen to an excerpt here.
Also found this web stream:
This Raudio Special brings you, as a continuous 24/7 audio webstream, ‘9 Beet Stretch’ by idea-based artist Leif Inge. ‘9 Beet Stretch’ is a recording of Ludwig van Beethoven’s ninth symphony stretched to 24 hours, without pitch distortion. We started the stream on saturday may 7th, 2005, at 20h15 (the moment of sunset (local time) in Vienna, Austria, where Beethoven’s ninth symphony was first performed, on may 7th, 1824).