Filip Żółtowski Quartet

Yass is a Polish avant-jazz movement that emerged in the early 1990s, fusing free jazz and free improvisation with punk’s energy, noise textures, and irreverent, often absurdist humor. Centered around the Tricity (Gdańsk–Gdynia–Sopot) and Bydgoszcz scenes, yass rejected academic formalism and mainstream "smooth" aesthetics in favor of DIY ethics, open forms, and radical genre collisions. Its sound ranges from lyrical modal passages to atonal blowouts, gritty grooves, and deconstructed songs, frequently incorporating rock backbeats, odd meters, and extended techniques. More than a style, yass functioned as a countercultural platform for bands and collectives, clubs, and indie labels, catalyzing a new, iconoclastic generation of Polish improvisers and composers.