"Karl Kraeuter, Violin, and Phyllis Kraeuter, Cello" . "Entered from booking ledger and New York Times concert listing. The assisting artists are not identified.\r\n\"CONCERT AND OPERA PROGRAMS OF THE WEEK.\" New York Times (1923-), Jan 31 1960, p. 1. ProQuest. Web. 30 May 2022." . "chamber music performance" . . . "1960-01-31T17:30:00"^^ . . "duo recital" . . . .