Zs is an unpredictable band formed by tenor sax player Sam Hillmer. They have played in many configurations, exploring various genres of experimental music, from avant-rock to free jazz to noise. The latest line up will appear in Krakow, consisting of Hillmer, guitarist Patrick Higgins and drumer Greg Fox, joined by Gyða Valtýsdóttir, former member of the Icelandic band Múm.