"Entered from booking ledger and New York Times concert listing and review.\r\n\"OPERA AND CONCERT PROGRAMS.\" New York Times (1923-), May 03 1964, p. 1. ProQuest. Web. 20 Nov. 2023.\r\n\"Evening of Chamber Music.\" New York Times (1923-), May 04 1964, p. 34. ProQuest. Web. 20 Nov. 2023." . . . "chamber music performance" . . "1964-05-03T17:30:00"^^ . . "An Evening of Chamber Music" . . .