The innovative acoustic free improvising ensemble Polwechsel, bridging contemporary music and free improvisation in ways that sound deceptively electroacoustic and comprised of Michael Moser on cello, Werner Dafeldecker on double bass, and Martin Brandlmayr & Burkhard Beins on cymbals & percussion, are joined by Klaus Lang performing on the church organ of St. Lambrecht's Abbey.

Book and 2 CDs documenting a 2010 concert and sound installation by Carsten Seiffarth and Michael Moser, with Polweschsel & guests (Burkhard Beins, Axel Dorner, &c) performing the concert.