The Gush trio — Mats Gustafsson on reeds and flute, Sten Sandell on piano, and Raymond Strid on drums — celebrate 30 years since their original formation, in extraordinary concerts at Alchemia and Manggha Hall in Krakow, joined by guests in three dynamic configurations — two sextets and a septet — for an unforgettable series of performances of irrepressible collective improvisation.

Forming his NU Ensemble in 1997 to merge free-jazz, improv, noise and contemporary forms, Mats Gustafsson presented Hidros One for 9 improvisers, tape & conductor that same year, progressing over 25 years to this 9th conduction of the Hidros concept in his largest ensemble yet: 25 musicians in two 9-piece ensembles plus soloists, captured live at the 2022 Avant Art Festival in Warsaw, Poland.

A box set documenting the October 2015 3-day event held at Porgy and Bess in Vienna for the 50th birthday of saxophonist Mats Gustafsson (The Thing, Fire! and innumerable duo/trio/ensemble formations) with a who's-who of collaborators invited to join in various formations.