Known best for his Chicago trios, Argentinian born clarinetist Guillermo Gregorio joins forces with New York contrabassist Brandon Lopez for 12 "episodes" of free improvisation that never loses track of a jazz basis, both players using an arsenal of techniques, from circular breathing to extracting sound from the physical forms of their instruments.

Guillermo Gregorio produces a series of compositions that reinterprets the structural concepts of Constructivism, Concretism, and Madi, focusing on the physicality of sound.

In 2000, saxophonist Mats Gustafsson and curator John Corbett organized a 16-piece free music big-band featuring key members of the Chicago and Swedish scenes, recording these two impressive, ecstatic, and explosive works.

The trio of Guillermo Gregorio (clarinet), Steve Swell (trombone) and Pandelis Karayorgis (piano) use their unique selection of instruments to play an original set of composition and improv.

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