. . "Entered from booking ledger and New York Times concert listing and review.\r\nWORLD PREMIERE of Serge De Gastyne's VALSES BURLESQUES\r\n\"CONCERT AND OPERA PROGRAMS OF THE WEEK.\" New York Times (1923-Current file), Dec 15, 1957, pp. 136. ProQuest.\r\n\"DEBUT PIANO RECITAL BY REBECCA SPAATZ.\" New York Times (1923-Current file), Dec 20, 1957, pp. 31. ProQuest." . . . . "Rebecca Spaatz, Piano" . . . "solo recital" . . . "1957-12-19T20:30:00"^^ . .