(b Sambor, nr. Lwów, 1892; d NY, 1964).
Polish‐born pianist and composer (Amer. cit.). Pianist in f.ps. of Schoenberg's Pierrot Lunaire 1912 and of most other Schoenberg works with pf. part. Also gave f.p. of Berg's sonata. Pianist for Schoenberg's Society for Private Musical Performances. Taught pf. at Lwów and at Kraków Cons. (1932–6). Settled in USA 1936, teaching and playing in NY. Taught at Philadelphia Cons. 1948–63 and at Juilliard Sch. 1952–64. Gave summer classes at Salzburg Mozarteum 1953–63. Tireless champion of 12‐note mus., especially Schoenberg's, several of whose orch. works he transcr. for pf. Gave series of concerts of contemporary mus. in NY. Works incl. cantata to text by Kafka, Variations for orch., Suite for chamber orch., song‐cycles, str. qts., etc.