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Max Eugen Keller (born 19 March 1947, Aarau) is a Swisscomposer, jazz pianist and improvising musician. He was one of the first free-jazz musicians in Switzerland. Since 2007 he is chairman of the Swiss Society for New Music.
In 1966 he began his career as one of the first Swiss artists of free jazz. In 1967, he had a sensational performance at the Zurich Jazz Festival. He played in various bands in concerts and on radio broadcasts in Europe.
Since 1980 he worked as an improvising musician (piano and electronic musical instruments) again. Concerts have taken him to South America, Germany, the Netherlands and Switzerland. He worked together with Dani Schaffner, Christoph Gallio, Peter A. Schmid, Mathias Rissi [de], Kurt Grämiger, Daniel Mouthon, Thomas Borgmann, Hans Koch, Urs Leimgruber, Günter Müller, Hans Hassler, Charlotte Hug, Matthias Ziegler, Christian Wolfarth, Günter Heinz and Barry Guy.
