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.

Merging contemporary and traditional instruments, including the spilapipa (a fipple flute), hardanger fiddle, the Bilgoraj suka (a vertical fiddle), alongside prepared piano, organ, trumpet, tuba, baritone sax & voice, Mats Gustafsson's ensemble merges folk, experimental forms, improv & free jazz in a conduction shaped by the participants; absolutely unique & fascinating.