https://www.youtube.com/watch?v=MIDuZq7RVAM

“Knee 1” is a segment from the opera Einstein on the Beach (1976), an opera scored and written by Philip Glass.

The 1978 recording above was released by Columbia Masterworks Records, with an illustration by Milton Glaser. The solo voice is by Iris Hiskey.

“Knee 1” is World Music Classic #915