“Chance the Rapper is joyful on record like few musicians are joyful; when he raps, he sounds superhuman and exhilarated, as if he’s just crashed through some intractable wall inside himself and is exulting in the freedom on the other side. “No Problem” explodes out of his new mixtape Coloring Book like uncorked champagne, fizzing joyfully with a gospel sample and Sunday-church organs. The song’s h”