Entered from booking ledger and New York Times concert listing and review. "Who Makes Music." New York Times (1923-), 21 Mar. 1971, p. 1. ProQuest. Web. 3 Sept. 2025. Hughes, Allen. "Harpsichord Skill is shown at Recital by Gerald Ranck." New York Times (1923-), 27 Mar. 1971, p. 16. ProQuest. Web. 3 Sept. 2025.