"Concert of Vocal Music" . . "joint recital" . "Entered from booking ledger and New York Times concert listing.\r\n\"CONCERT AND OPERA PROGRAMS OF THE WEEK.\" New York Times (1923-), Feb 28 1960, p. 1. ProQuest. Web. 9 June 2022." . . . . . . . . . . . . . . "1960-03-01T20:30:00"^^ . . . . .