. . "1964-05-27T20:30:00"^^ . . . . "All-Hindemith Program\r\nEntered from booking ledger and New York Times concert listing and review.\r\n\"OPERAS AND CONCERTS.\" New York Times (1923-), May 24 1964, p. 1. ProQuest. Web. 20 Dec. 2023.\r\n\"HINDEMITH SONATAS PLAYED AT CONCERT.\" New York Times (1923-), May 28 1964, p. 41. ProQuest. Web. 20 Dec. 2023." . . . "solo recital" . . "Irving Ilmer, Violin and Viola" .