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.

Continuing his project dedicated to 20th century Polish composers, saxophonist Marek Pospieszalski leads his creative octet through open and collectively improvised arrangements of works from six Polish female composers — Barbara Buczek, Elżbieta Sikora, Grażyna Pstrokońska-Nawratil and Marta Ptaszyńska — in wide-ranging and often startling impressions of the original works.

Featuring some of Poland's most interesting improvisers and contemporary players and led by wind & reedist Marek Pospieszalski, this 8-piece ensemble use the compositions of Krauze, Kotonski, Baird, Rudzinksi, Stachowski, Sikorsi, &c. as the inspiration and influence for sophisticated arrangements & improvisations merging concepts of jazz, contemporary composition & sound art.