The full 33-minute, unreleased, psychedelic funk jam session by Memphis rhythm kingpins the Bar-Kays, mixed directly from the original tapes. Contains bonus rhythm section instrumental and booklet detailing the history of this never-before-heard version of one of Isaac Hayes' most famous songs by Hayes historian Bill Dahl. Consigned to the vaults, those improvisatory extensions-somewhere in between free-jazz and psychedelic rock-were seemingly destined never to be heard. Until now.