Harold Zabrack, Composer-Pianist Entered from booking ledger and New York Times concert listing and review. The review suggests that Mr. Zabrack repeated his Piano Sonata No. 2 at the end of the performance. NEW YORK PREMIERE of Harold Zabrack's 5 CONTOURS NEW YORK PREMIERE of Harold Zabrack's PIANO SONATA NO. 2 (original version) "Who Makes Music and Where." New York Times (1923-), 30 Mar. 1969, p. 1. ProQuest. Web. 9 May 2025. Henahan, Donal. "Harold Zabrack Plays Own Works for Piano." New York Times (1923-), 31 Mar. 1969, p. 29. ProQuest. Web. 9 May 2025. solo recital 1969-03-30T17:30:00