Longest continuous playing songs


I like (and looking for) continuous playing music, it could be one song or a group of songs that play uninterrupted, the longer, the better. Does anybody have any suggestions?

Thanks for any suggestions,

Steve
sc2
Blue Room-The Orb. This is the infamous 39:57 minute long song they put out in response to the 40:00 cap that was put on singles in the 90's. It's pretty great and it's never boring.
Enigma MCMXC. Is seems to be one long continuous tune. Recorded very well for being done in analog then put on to CD. Gotta be in the mood for it though.
Happy listening, John
Yep, the Steve Kimock band was a good choice! I've seen that band do 1 hour "songs" during a 3.5 hour show. I can't believe how long these guys can play, Kimock must have some VERY strong hands/fingers!

-RW-