Though listing four tracks, this is an indexed continuous concert from the German Grid Mesh quartet of Christof Thewes on trombone, Frank Paul Schubert on alto & soprano saxophones, Andreas Willers on electric guitar and Willi Kellers on drums & percussion, performing at Spielraum Schiffweiler-Heiligenwald in Germany in 2020 for a wildly buidling concert of free collective force.

Two thirds of the free jazz group "Boom Box"--saxophonist Thomas Borgmann and drummer Willi Kellers--and referencing that band's 2011 album titled Jazz, Keys & Screws is rounded out as a trio with double bassist Jan Roder, following the format of "Jazz" with compositions from each player following head/solo format, fueled by each player's extensive experience.