Studied piano with Madame Maurina-Press, comp. with Wallingford Riegger, Stefan Wolpe. Was Edgard Varése Teacher at State School of NY at Buffalo. Began visual works, with open up pitch and tempo, and music “clear of a compositional rhetoric” in early ’50s, eg. Buildings for string quartet (1951). Music with pitches provided but with independence of tempo, eg. The Swallows of Salagan (1960). Afterwards, fully notated functions, mostly noiseless (to be able to perceive timbre and overtone materials) with nondramatic gestures, eg. Piano and Orchestra (1975). Last functions of lengthy durations up to six-hour String Quartet No. 2 (1983).