This typically forthright and mind-mangling release marks the fourth and final instalment in Khemia's Magnum Opus series. It delivers two unheard versions of tracks from the label's growing back catalogue. First up on side A is SARIN's pulsating revision of Schwelfelgelb's "Fokus", which combines the throbbing drums and mind-altering bass of Front 242 or Nitzer Ebb style EBM with the kind of sharp, restless stabs more often found on basement or warehouse-friendly old house anthems. Meanwhile on the flip, vocalist HIV+ adds his drowsy, stylish voice to Blind Delon's dirt-encrusted, eyeliner-clad gothic synth-pop number "Fuzz". It's something of a chugger, all told, powered by an undulating, arpeggio style bassline and clandestine, foreboding synthesizer lines.