(b Hamburg, 9 June 1912; d Frutigen, 6 Aug. 1970). German-born American composer. He studied in Cologne with Philipp Jarnach (1930–2), in Zürich (1932–6), and in California, where he settled in 1938, becoming an American citizen in 1943. From 1945 until his death he taught at the University of Southern California. He was close to Stravinsky, musically as well as personally, and in his Piano Quartet (1957) followed Stravinsky from neo-classicism into serialism. Most of his small output consists of instrumental music.
From The Oxford Companion to Music in Oxford Reference.