Arszyn (real name Krzysztof Topolski, born 1973, Gdańsk): creator of sound and interactive installations, drummer, electronic musician and improviser. He creates on his own or in a duet with Emiter. Holder of scholarships awarded by the Minister of Culture and National Heritage and the Vienna Museums Quartier. Author of lectures popularizing contemporary music and sound art, educational projects and sound workshops. Noise and soundscape are the key notions in his art. He cooperates with numerous visual artists. Member of the Polish Society for Electroacoustic Music.