Entered from booking ledger and New York Times concert listing and review. "Who Makes Music and Where." New York Times (1923-), 11 May 1969, p. 1. ProQuest. Web. 20 May 2025. "HARRY MAYER PLAYS BACH-LISZT FANTASY." New York Times (1923-), 17 May 1969, p. 18. ProQuest. Web. 27 May 2025.