Hans Koch left his career as a recognized classical clarinetist to become one of the most innovative reed-player improvisers in Europe. Since the eighties, he has worked with the likes of Cecil Taylor and Fred Frith. As a composer he has shaped the sound of Koch-Schütz-Studer since the beginning as well as working for radio-plays and film. Since the nineties he has been working with electronics as an extension of the saxes/clarinets as well as with sampling/sequencing/laptop.