Archy Marshall is only 19 years old, but as King Krule, the singer-songwriter expresses a kind of cloud-ridden doom that sounds a decade or so beyond his age. Otherwise known as Zoo Kid and Edgar the Beatmaker, the extraordinarily promising London artist has been making music since age 8 and rising in the indie underground since 2011. In August, Marshall made his full-length debut with 6 Feet Beneath the Moon, a deep-end swim through suicide, troubled romance, and other morose themes that uses folk, dubstep, trip-hop, and soul as buoys en route. Mixing vocal traits of Billy Bragg and Ian Curtis, Marshall's imprecise brand of talk-singing involves awkwardly stretching syllables as if they're pieces of cheap bubblegum. But maturing better not deter him from exposing faults and wounds with a fearless sense of experimentation — that's exactly what makes him special.