Percussionist Tomek Chołoniewski, a graduate of Academy of Music in Krakow, belongs to the local improvised music scene, where he plays solo, together with the Volume, and alongside other numerous musicians and bands. He's also running workshops, writing music for theatre, and has participated in Unsound-related events, including Unsound LABs in New York this year. In 2011 he released his solo album, „Un”, on Mathka.

http://www.mathka.pl/tomek-choloniewski-un/