. . . . . "chamber music performance" . . . . . . . "Entered from booking ledger and New York Times concert listing.\r\n\"CONCERT AND OPERA PROGRAMS FOR THE WEEK.\" New York Times (1923-Current file), Apr 28 1957, p. 1. ProQuest. Web. 28 July 2021." . . . . . "Mandolin and Guitar Society Concert" . . . "1957-04-28T14:45:00"^^ . . .