Kaytranada’s working on it. The Haitian-born, Quebec-raised producer, whose 2016 debut 99.9% was a glitter-bomb dropped onto the dance floor, is back on his grind, mixing songs, building grooves and grappling with a surprising degree of self-doubt. The last time he was doing this—finishing an album—he was living with his mom and best known as a bedroom beatmaker who put out (illicit) remixes of Janet Jackson and Missy Elliott. Since then Louis Kevin Celestin has left home, come out, and