Important past collaborations: FRISQUE CONCORDANCE John Butcher sax Georg Graewe piano Hans Schneider bass Martin Bume drums Melvyn Poore / Martin Blume Duo Melvyn Poore tuba Martin Blume drums Luc Houtkamp / Martin Blume Duo Luc Houtkamp sax, computer Martin Blume drums Georg Graewe / Martin Blume Duo: "manufacts" Georg Graewe piano Martin Blume drums Gratkowski / Leandre / Blume 3 Frank Gratkowski reeds Joelle Leandre bass Martin Blume drums Butcher / de Joode / Blume 3 John Butcher sax Wilbert de Joode bass Martin Blume drums 2nd outlet Luc Houtkamp ts, computer, Cor Fuhler piano Martin Blume dr