born May 10, 1916, Philadelphia, Pa., U.S.
U.S. composer.
At Princeton University he studied with composer Roger Sessions and later joined the faculty. He became one of the first U.S. 12-tone composers, and he was (with his Three Compositions for Piano , 1947) perhaps the first composer to write totally serialized music based on ordered structures not only of pitch but of elements such as rhythm and dynamics. The first composer to work with RCA's Mark II synthesizer, he became one of the first Americans to write electronically synthesized music. He wrote various pieces combining live performers and tape.