The instrumental prog/metal band Dysrhythmia has been fairly quiet since their last album Psychic Maps from 2009; that was their last Lp for Relapse, and after its release I figured that bandleader Kevin Hufnagel was going to focus his attention on his new position in the revived Gorguts and his new band Vaura. Instead, the band (which also includes bassist Colin Marston, a fellow Gorguts newbie and tech-bassist extraordinaire for Krallice and Behold. The Arctopus, and the skilled drumming of Jeff Eber) has re-emerged with Test Of Submission, their new eight-song album for Profound Lore, and its one of the best prog albums I've listened to this year. Still instrumental and still the better for it, Dysrhythmia let the dizzying complexity of their riff-arrangements and the interplay between the three musicians do all the talking, unleashing soaring and highly dramatic melody over a metallic math-rock assault that demands several listens before you can even fully take stock of what these guys are doing. The most aggressive elements of fusion jazz and Euro-style prog rock are absorbed into the band's dynamic, as are welcome doses of angular thrash metal and mega-slabs of off-time chug, and I'm thinking that the music on Test might be the heaviest stuff I've ever heard from Dysrythmia. "The Line Always Snaps" is a perfect example of this, a seamless combination of choppy otherworldly thrash and lush, textural guitar-scapes, bits of ethereal black metal influenced tremolo-bliss washing over sudden eruptions of blastbeats, then abruptly dropping into slow-motion doom-laden angularity. Elsewhere the band utilizes oceanic noise and gleaming clean guitars to weave infectious and atmospheric prog workouts, like on "Running Towards The End". All in, though, it;s like hearing Don Cabellero souped up on meth and fed a steady diet of 90s prog-death and RIO albums. Highly recommended to fans heavy-duty, metallic math rock, dark prog, the avant-garde death metal of Cynic, Gorguts and Pestilence, and any of the other bands that these guys play in. Stunning stuff. Comes in a six-panel digipack.