Continuing the celebration this season, Riccardo Muti conducts two more of Beethoven’s immortal symphonies—the graceful Fourth, described as “a slender Greek maiden between two Norse giants” by composer Robert Schumann, and the mighty, driving Seventh, which many, including Beethoven himself, considered one of his greatest works. A world premiere by Mead Composer-in-Residence Missy Mazzoli, “Brooklyn’s post-millennial Mozart” (Time Out New York), opens the program.