Maryla Jonas, Piano Entered from New York Times concert listing and review and advertisement in 12/1/1947 program. While none of these resources specify which of Schubert's A major piano sonatas was performed, reviewer Olin Downes' comment about "few major numbers on program" leads to the conclusion that Jonas performed the shorter D. 664 sonata. "The Programs of the Week." New York Times (1923-Current file) Dec 01 1946: 1. ProQuest. 24 Sep. 2013. Downes, Olin. "Throng's Approval Won By Miss Jonas." New York Times (1923-Current file) Dec 08 1946: 70. ProQuest. 24 Sep. 2013. solo recital 1946-12-07T15:00:00