"chamber music performance" . "Entered from booking ledger and New York Times concert listing and review.\r\n\"CONCERT AND OPERA PROGRAMS OF THE WEEK.\" New York Times (1923-), Apr 03 1960, p. 1. ProQuest. Web. 3 Aug. 2022.\r\n\"NEW CHAMBER GROUP GIVES CONCERT HERE.\" New York Times (1923-), Apr 05 1960, p. 44. ProQuest. Web. 3 Aug. 2022." . . "New Music Chamber Group" . . . . . "1960-04-04T20:30:00"^^ . . . . .