Collect (SATB chorus with 2-channel electronic tape), 5', 1969 (©1970), World Library Publications, Upsala College Choir, Richard Toensing, cond., East Orange, NJ, March 23, 1969, comm. by Upsala College.

Triform, 6', 1966, Ann Arbor, MI, Dec. 3, 1966, withdrawn due to  tape deterioration

Three Studies in Electronic Sound, 7', 1965, Ann Arbor, MI, Oct. 10, 1965, withdrawn due to tape deterioration.