Knee Play 4 by Philip Glass Overview Tag Appears on CD03 - Einstein On The Beach (1976) Einstein on the Beach Einstein on the Beach (disc 3) Einstein on the Beach, disc 3 Einstein on the Beach (disc 3/4) Einstein on the Beach (Philip Glass Ensemble feat. conductor: Michael Riesman) Einstein on the Beach (Philip Glass Ensemble feat. conductor: Michael Riesman) (disc 3) Glass Box: A Nonesuch Retrospective Glass Piano Glass Piano (Extended Version) Playcount 44 Listeners 28