From Allmusic.com : "Isolated Irritation is Helmut Schäfer's second solo album (he has also collaborated with Zbigniew Karkowski, among others). It consists mostly of a live set from Mills College (Oakland, CA), October 10, 2001. The 36-minute performance takes the form of a digital sonic onslaught. The piece roars relentlessly, letting small changes unfold in the background, almost out of reach of the listener's saturated ears. Analog electronics (like effect boxes) seem to be used alongside the inevitable laptop and the result sounds very much like Karkowski's collaborations with Masami Akita (aka Merzbow) in MAZK. Compared to the label Post-Concrete's other releases, this album is somewhat brutal in its maximalism. Noise doesn't exclude craftsmanship and detail; track two is a shorter "remix" of the Mills performance and proceeds from much quieter pastures to full-scale noise, always remaining less dense and more varied in textures."
Helmut Schäfer died in April 2007.
"Isolated Irritation" was released by Post-Concrete in 2002.
Get it here : Helmut Schäfer - Isolated Irritation