New York Debut Entered from booking ledger and New York Times concert listing and review. The correct program order is uncertain. "Who Makes Music and Where." New York Times (1923-), 30 Mar. 1969, p. 1. ProQuest. Web. 9 May 2025. Ericson, Raymond. "BRASS ENSEMBLE MINGLES ITS ERAS: LONDONERS' PROGRAM LINKS GABRIELI AND MODERNS." New York Times (1923-), 03 Apr. 1969, p. 46. ProQuest. Web. 12 May 2025.