Cage arranged this event as part of his residency at the University of California at Davis in November 1969. There is no score for this work; only a description of the 1969 performance, with information assembled by Charles Amirkhanian and Larry Austin. The description includes all the information necessary to re-stage the event. After the sound equipment is set up, the audience is free to wander in and out and play the records at will. The original event was scheduled for 4 hours.