Gravious (real name Alastair Jackson) is a dubstep and electronic music producer based in Glasgow. His early releases came via the HotFlush label, and its Scuba sub-label. More recent releases have come through Highpoint Lowlife, Davey Jones, Saigon and Broken Bubble. Now Gravious offers Halocyan his most ambitious work to date, the *Rolling Thunder EP*. The EPs title track begins with glassy, plinking synths that Segway into a rollicking, stuttering beat. Pitched up vocals lend a 90s throwback vibe to this fun, uplifting number. Hotly tipped New York producer Octo Octa (100% Silk) cools down the original with loads of house flavor and his own pristine melodies. On the B-side, *Release*, is a towering, glacial epic pushed along by a lurching, pulsating bassline and sensual, shifting vocals. Closing out the record is *Sulaco Squares*, a taut, careful arrangement packed to the brim with colorful melodies and arpeggios.