"Concert by the Group for Contemporary Music" . . . "Entered from booking ledger and New York Times concert listing and review.\r\nWORLD PREMIERE of Milton Babbitt's SEXTETS FOR VIOLIN AND PIANO\r\nWORLD PREMIERE of Harley Gaber's LUDUS PRIMUS: FOREPLAY\r\nNEW YORK PREMIERE of Charles Wuorninen's COMPOSITION FOR OBOE AND PIANO\r\n\"Who Makes Music and Where.\" New York Times (1923-), Feb 12 1967, p. 110. ProQuest. Web. 25 Sep. 2024.\r\nStrongin, Theodore. \"Music: A Serious Group of Moderns.\" New York Times (1923-), Feb 20 1967, p. 47. ProQuest. Web. 25 Sep. 2024." . . . . . . "1967-02-18T20:30:00"^^ . . . "chamber music performance" .