New York Sinfonia New York Debut of Helen Merritt Schonberg, Harold C. "Music: Chamber Group: Westermann Makes Debut here Leading New York Sinfonia in Fine Program Joseph Locke, Irish Tenor, Gives Recital." New York Times (1923-Current file), Mar 24 1956, p. 15. ProQuest. Web. 18 Dec. 2020. chamber orchestra performance 1956-03-23T20:30:00