Willi Kellers, born 1951, studied in Münster and Detmold. Theatre work as composer in Bochum, Cologne, Basel, Hamburg and Burgtheater Wien.
Many concerts and tours with Peter Brötzmann, Tony Oxley, Frank Wright, Willem Breuker, Albert Mangelsdorff, Peter Kowald, Keith Tippett, Lol Coxhill, Marylin Crispell, Manfred Schoof, Fred Frith, Charles Gayle, Cecil Taylor, Luten Petrowsky, Barre Phillips and many more.

Willi Kellers played on mostly all European festivals and festivals worldwide.