Watershed Tapes C-402A (cassette)

Interview with John Cage

Interview with John Cage conducted on the occasion of his 60th birthday. (120 min.)

John Cage interviewed by Hans G.Helms (in English)

Recorded in 1972. Produced by S-Press (Germany).
This is probably the same recording as S-Press Tonbandverlag 27-29, although the duration of both cassettes is not the same.
Cassette released in 1975

Sources: New Albion Discography and University of California, Berkeley Music Library catalog