Every four years the International Tchaikovsky Competition considers giving a pianist its First Prize. Some years it just doesn't. But in 2011 it gave Daniel Trifonov not only a First for piano, but also its overall Gold Medal. (He also took first at the Rubinstein Competition in Israel.) Hear him perform Prokofiev's marvelous Third Piano Concerto with the New York Philharmonic on Thurday night's concert broadcast. The orchestra also performs Mussorgsky's Night on Bald Mountain, and Rimsky-Korsakov's Scheherazade under music director Alan Gilbert.