"Maria Petrova, Soprano" . . . . . . "New York Debut\r\nEntered from booking ledger and New York Times concert listing and review.\r\nWORLD PREMIERE of George Antheil's SONGS OF EXPERIENCE: FOUR SONGS\r\n\"CONCERT AND OPERA PROGRAMS OF THE WEEK.\" New York Times (1923-Current file), Feb 22 1959, p. 1. ProQuest. Web. 20 June 2020.\r\nSalzman, Eric. \"LOCAL DEBUT SUNG BY MARIA PETROVA.\" New York Times (1923-Current file), Feb 27 1959, p. 21. ProQuest. Web. 20 June 2020." . . "1959-02-26T20:30:00"^^ . . . . . . . . "solo recital" . . .