League of Composers Entered from New York Times concert listing and review. "Concert And Opera Programs." New York Times (1923-Current file): 1. Dec 17 1950. ProQuest. Web. 6 Jan. 2016. "Boulez' 2d Sonata Heard In Premiere." New York Times (1923-Current file): 35. Dec 18 1950. ProQuest. Web. 6 Jan. 2016. U.S. PREMIERE of Robert Moevs' PIANO SONATA U.S. PREMIERE of Pierre Boulez's PIANO SONATA NO. 2 NEW YORK PREMIERE of William Schuman's STRING QUARTET NO. 4 chamber music performance joint recital 1950-12-17T20:30:00