The East Coast Chamber Orchestra brings maximum impact to an intimate art form with a boisterous Mozart Divertimento, Bruch’s lushly gorgeous Octet, and the gripping intensity of Schoenberg’s WWII-inspired “stand against tyranny.” Finales don’t get much grander than a “playful, audience-pleasing arrangement” of La Follia variations, “already a showcase for Baroque display, [that takes on] contemporary techniques, jazzy harmonies, subtle percussion and exuberant stomps” (New York Times).