"choir and orchestra performance" . . . . . . "Entered from program calendar and New York Times concert listing and review.\r\n\"Concert and Opera Programs of the Week.\" New York Times (1923-Current file): 1. Apr 19 1953. ProQuest. Web. 28 Aug. 2014.\r\n\"Early Music Group Gives Final Concert.\" New York Times (1923-Current file): 25. Apr 20 1953. ProQuest. Web. 28 Aug. 2014." . . . . . . . . "1953-04-19T20:30:00"^^ . . "Early Music Foundation Concert" .