Every micro-genre of UK dance music seems to require a producer either bold or foolish enough to step out of the madly 12”-driven scene with an LP—just think how many copies of New Forms sit forgotten on our shelves? For the “wobbly” school of bassy, oscillator-driven dubstep, the avatar is Caspa, perpetrator of forbidding, arid monoliths that crowbar open your skull with bass and wedge themselves in to stay. The slow, irresistible march of “Marmite” and “Riot Powder” could power dank club soundsystems by themselves, but it’s self-conscious stabs at range, like the incongruously Auto-Tuned R&B “Lon-Don City,” that sap Caspa’s raw power.