Biography
Hans Koller Free Sound
Effective period / Period of releases: 1973 - 1977
Members: Hans Koller, Eddy Marron, Janusz Stefański, Adelhard Roidinger, Jürgen Wuchner, Alex Bally, Albert Mair
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Effective period / Period of releases: 1973 - 1977
Members: Hans Koller, Eddy Marron, Janusz Stefański, Adelhard Roidinger, Jürgen Wuchner, Alex Bally, Albert Mair