"C-Troit" is a name revived from a lost, unfinished track by Blackdown in the very earliest "roots" years of dubstep. A hybrid of the words "Croydon" and "Detroit", it's a heuristic for the place between Greater London's bass-lead music and the halcyon synths of early Detroit techno. Now that there's a growing body of dark, 130bpm-ish rollage, from within the Keysound Recordings camp and crews beyond, Rollage Vol.3 seeks to throw warm light into the shadows, with the tracks "Godlike Power", "Clueless" featuring Dusk, and "Halcyon Skies (Rollage Mix)".