Music with roots in the aether: opera for television. by Robert Ashley

New York, NY: Lovely Music, Ltd., 1976. Audiovisual, 7 videocassettes (Beta) (820 mins.) : sd., col. ; 1/2 in. Recorded in stereo.

Tape 1. David Behrman -- Tape 2. Philip Glass -- Tape 3. Alvin Lucier -- Tape 4. Gordon Mumma -- Tape 5. Pauline Oliveros -- Tape 6. Terry Riley -- Tape 7. Robert Ashley.

Director and camera, Philip Makanna ; video recordist and technical director, Jerry Pearsall.

Each tape contains first an interview and discussion, followed by the composer's musical works.