Encore information added from New York Times review. Downes, Olin. "Horowitz Plays Prokofieff Music." New York Times (1923-Current file) Mar 15 1944: 17. ProQuest. 27 Aug. 2013. NEW YORK PREMIERE of Sergei Prokofiev's PIANO SONATA NO. 7 IN B-FLAT MAJOR, OP. 83