. . . "chamber music performance" . . . . . . . . . . . "Entered from booking ledger and New York Times concert listing and review.\r\nWORLD PREMIERE of Amadeo de Filippi's DIVERTIMENTO\r\nNEW YORK PREMIERE of Antonio Lora's FOUR SYMBOLS\r\nNEW YORK PREMIERE of Erwin Henning's BY THE RIVERS OF BABYLON\r\nWORLD PREMIERE of Irwin Swack's WIND QUINTET\r\n\"CONCERT AND OPERA PROGRAMS THIS WEEK.\" New York Times (1923-), Jan 29 1961, p. 1. ProQuest. Web. 12 Sep. 2022.\r\nSalzman, Eric. \"Composers Group here Gives Program of Works by Seven.\" New York Times (1923-), Jan 31 1961, p. 24. ProQuest. Web. 13 Sep. 2022." . "Concert by the Composers Group of New York City" . . "1961-01-30T20:30:00"^^ . .