. "Entered from booking ledger and New York Times concert listing. The program was also to have included unspecified works by Biondo and Williams.\r\n\"Who Makes Music and Where.\" New York Times (1923-), 23 Feb. 1969, p. 1. ProQuest. Web. 7 May 2025." . . "1969-02-23T20:30:00"^^ . . "solo recital" . "Roswitha Roxin, Piano" . . . . . .