Entered from booking ledger and New York Times concert listing and review. "Music Makers an Operas, Concerts, Recitals: OPERA METROPOLITAN OTHER EVENTS." New York Times (1923-), Oct 30 1966, p. 1. ProQuest. Web. 17 Sep. 2024. "Lieder among Weekend Music Fare." New York Times (1923-), Oct 31 1966, p. 42. ProQuest. Web. 17 Sep. 2024.