Concert by the Sine Nomine Singers Entered from booking ledger and New York Times concert listing and review. "Who Makes Music and Where." New York Times (1923-), 14 Dec. 1969, p. 1. ProQuest. Web. 24 June 2025. Davis, Peter G. "Sine Nomine Singers Conducted by Saltzman." New York Times (1923-), 15 Dec. 1969, p. 63. ProQuest. Web. 24 June 2025. choir performance 1969-12-14T20:30:00