"1960-02-29T20:40:00"^^ . . "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 28 1960, p. 1. ProQuest. Web. 9 June 2022.\r\nSalzman, Eric. \"GRISHMAN AND RYCE GIVE JOINT RECITAL.\" New York Times (1923-), Mar 01 1960, p. 29. ProQuest. Web. 9 June 2022." . . . . . "duo recital" . . . . "Grishman-Ryce Duo" .