. . "1961-05-06T14:30:00"^^ . "Entered from booking ledger and New York Times concert listing and review.\r\n\"PROGRAMS THIS WEEK CONCERT AND OPERA.\" New York Times (1923-Current file), Apr 30 1961, p. 1. ProQuest. Web. 23 Oct. 2019.\r\n\"PROGRAMS THIS WEEK CONCERT AND OPERA.\" New York Times (1923-Current file), Apr 30 1961, p. 1. ProQuest. Web. 23 Oct. 2019.\r\n\"VIOLIN, VIOLA DUO OFFERS PROGRAM: Sonya Monosoff and Louise Rood Give a Recital.\" New York Times (1923-Current file), May 07 1961, p. 80. ProQuest. Web. 24 Oct. 2019." . "duo recital" . . . . . . . . "Sonya Monosoff, Violin, and Louise Rood, Viola" .