2009 sophomore release from French Deathtronix duo Whourkr, Concrete is a whirlwind of electronically processed and treated Avant-Death/Grind that is as violent and brutal as it is complex and obsessively constructed, relying as much on samplers and sound-editing software as it does on bone crushing technical riffs, vicious screaming and hyperspeed mechanized blastbeats. Each track becomes a cyclone blast filled with a hundred moving parts; what might at one point been a straightforward Death Metal song is now defleshed, violated, and reconfigured into a brutal plasma blast of demonic time-stretched vocal acrobatics, ultra complex riffs blasted through a vortex of dizzying time signature changes, screaming glitched-out electronic effects and bizarre filtering, mangled quasi-jungle beats and programmed blastbeats that are so insanely fast that they resemble the blur of 10 CDs all skipping simultaneously.