Studied with Roslyn Brogue Henning and Schillinger Method. Pianist. Innovative graphic notational methods influenced by Schillinger and Calder. Collaborated with John Cage on the Project for Music for Magnetic Tape (1952-55). Other compositions include: Music for "Tender Buttons" for speaker, flute, horn, and harp (1953), Indices for chamber orchestra (1954), Calder Piece for four perc. and mobile (1967), Modules I-II for orchestra (1966), Event: Synergy II for 11 woodwinds and eight strings (1968), Time Spans for orch. (1972), Tracer for ensemble and tape (1984), Tracking Pierrot for ensemble (1992).