Entered from New York Times concert listing and review. U.S. PREMIERE of Eduardo Toldrá's THREE SONNETS "PROGRAMS OF THE WEEK." New York Times (1923-Current file), May 04, 1941, pp. 1. ProQuest. "Romulo Ribera in Violin Recital." New York Times (1923-Current file), May 11, 1941, pp. 42. ProQuest.