In the techno firmament, Shifted's Avian is one of the most respected labels, but Rhyw aka Alex Tsiridis has risen admirably to the challenge here. Following on from last year's first instalment, he opens the second volume with the gentle drones of "Karhide", before putting his head down to drop the supple rhythms of "Happening RN", a hypnotic piece of techno that has shades of Regis. "Opportunist" is similar in structure, but sees Rhyw deliver a more tunnelling groove, while on the grandiosely titled "Byzantine Mahogany" the mood shifts towards a grungy, bass-heavy workout. Rounding this impressive second outing is the abstract "All Structures Are Unstable".
Alex Tsiridis is part of dub techno act Cassegrain, but for this release on Shifted's Avian label, he unleashes a new project, Rhyw. Seeking to straddle both the dance floor and experimental worlds, Cave Walls features the grainy, twitchy "Iroquois" and the dark soundscapes of "Aversion Two". At the other end of the spectrum, there's the dark, pulsing ebm rhythms of "Sylvan" and the creepy, stuttering industrial of "Vixen for Society". However, the strongest track comes as a result of a partial retrenchment by Tsiridis to his default sound. More streamlined than the Cassegrain material, "Vixen for Society" is nonetheless a droning, hypnotic affair that brings the listener through the darker end of the cosmos.