"Entered from booking ledger and New York Times concert listing and review.\r\n\"PROGRAMS FOR CURRENT WEEK.\" New York Times (1923-Current file), May 20 1956, p. 122. ProQuest. Web. 24 Mar. 2021.\r\n\"Music: Ars Nova Plays: Ensemble Gives Final 'Twilight Concert' of Season at Carnegie Recital Hall.\" New York Times (1923-Current file), May 26 1956, p. 14. ProQuest. Web. 25 Mar. 2021." . . . "Ars Nova Chamber Ensemble" . . "chamber music performance" . . . "1956-05-25T18:00:00"^^ . .