His pulse beats to the rhythm of indie dance and melodic techno. In his sets, KÆS is unafraid to explore deep house textures and minimalist touches of minimal deep tech. Always adapting to the setting around him, the way KÆS sounds depends on the time of day and how fired up the dancefloor is. Kacper is one of the main creative forces behind The X Festival, where he also curates the artist lineup. He has performed at clubs such as Ciało (Wrocław), Schron (Poznań), Crackhouse (Gdańsk), Lśnienie (Bielsko-Biała), Luzztro (Warsaw), and P29 (Łódź).