"Accessible" can be a dirty word in contemporary classical music. For decades, composers have outfitted their works with gnarly tangles of complexity, and heaven forbid if there's a tune you can hum.

Performances in N.Y.C. Advertisement Supported by Critic’s Notebook Interest has been building in the works of Nikolai Kapustin, who wrote in classical styles, with a jazzy spin. By Seth Colter Walls ...