"1957-09-15T20:30:00"^^ . "Interval Concert: Kohon String Quartet" . "chamber music performance" . . . . . . . "Entered from booking ledger and New York Times concert listing and review (the 2nd violinist and violist are not named).\r\nWORLD PREMIERE of Gershon Ephros' INTRODUCTION, ANDANTE AND FUGUE\r\nWORLD PREMIERE of Charles Sorrentino's EUTERPE\r\n\"PROGRAMS OF THE WEEK.\" New York Times (1923-Current file), Sep 15, 1957, pp. 1. ProQuest.\r\n\"INTERVAL CONCERTS BEGIN NEW SEASON.\" New York Times (1923-Current file), Sep 16, 1957, pp. 26. ProQuest." . .