"Amadeus Quartet" . . . . . "chamber music performance" . "1960-02-21T17:30:00"^^ . . . "Entered from booking ledger and New York Times concert listing and review.\r\n\"CONCERT AND OPERA PROGRAMS OF THE WEEK.\" New York Times (1923-), Feb 21 1960, p. 1. ProQuest. Web. 7 June 2022.\r\n\"AMADEUS GROUP PLAYS: QUARTET PRESENTS WORKS BY HAYDN, MOZART, SCHUBERT.\" New York Times (1923-), Feb 22 1960, p. 12. ProQuest. Web. 7 June 2022." .