Sibling production duo Christian Rich create shadowy sonic universes that shine vibrantly in the right hands. Composed of Chicago-via-Lagos musicians Taiwo and Kehinde Hassan, the brothers are at their best alongside left-field rappers, like renaissance man Childish Gambino (“I.Crawl”) and perennial deep thinker Earl Sweatshirt (“Chum”). With Christian Rich’s offbeat assistance, hip-hop’s best acts frolic and brood over life’s twists and turns.