Entered from booking ledger and New York Times concert listing and review. WORLD PREMIERE of Verdesi's THE DIVINE PARADOX "Who Makes Music and Where." New York Times (1923-), 02 Mar. 1969, p. 1. ProQuest. Web. 7 May 2025. Jones, Robert. "Song Program is Given by Constantine Cassolas." New York Times (1923-), 07 Mar. 1969, p. 27. ProQuest. Web. 7 May 2025.