- 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- Triform, 6′, 1966, Ann Arbor, MI, Dec. 3, 1966, withdrawn due to tape deterioration
- Three Studies in Electronic Sound, 7′, 1965, Ann Arbor, MI, Oct. 10, 1965, withdrawn due to tape deterioration.