The first Wandering The Sound album in 2018 was the trio of Argentinian reedist Guillermo Gregorio, Spanish drummer Ramón López and Polish bassist Rafał Mazur, here extended to a quintet with pianist Satoko Fujii and trumpeter Natsuki Tamura for a 2019 concert at Alchemia in Poland, a masterful example of free improv based on a poem by Ikkyu Sojun, a Zen master from the 15th century.

Two performances of Chicago reedist and composer Guillermo Gregorio's graphic score "Moholy 2", inspired by the artwork of László Moholy-Nagy, recorded in two conductions at the Experimental Sound Studio in Chicago in 2007 & 2008 by the trio of Gregorio on clarinets & alto sax, Damon Smith on double bass, and Jerome Bryerton on percussion, cymbals and drums.

A collection of compositions from clarinetist Guillermo Gregorio alongside collective improvisations from the trio with bassist Joe Fonda and drummer Ramon Lopez, sophisticated chamber-oriented jazz from masterful players recording in the studio in New Jersey, as they explore the musical intersection of disparate cultural, geographic and life experiences.

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.

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