One cassette with case, box: 5 3/4 in. x 5 3/4 in. 5/8 in. (14.6 cm x 14.6 cm x 1.6 cm); cassette: 2 1/2 in. x 4 in. (6.4 cm x 10.2 cm)

This track synthesizes many of the techniques and ideas popular among experimental composers during the late 1960s. While the piece represents a more mainstream take on the explorations of La Monte Young, who influenced Riley tremendously, Riley also incorporates Coltrane-inspired saxophone as well as the effects of time lag accumulators and tape loops, tools that would also become crucial for the composer Steve Reich. These experiments also had considerable impact in the world of popular music, influencing musicians ranging including The Who to The Velvet Underground.