Polwechsel Formed In 1993 An All Austrian Quartet - With Trombonist Radu Malfatti. When He Left In 1997 John Butcher Joined Them To Record Polwechsel 2. The Group Has Worked With Compositions Improvisation And The Ambiguity Of These Methods - And Performed In Germany Austria Poland Italy USA And Canada. In 2002/3 They Recorded Wrapped Islands And Toured With Laptop Player And Guitarist Christian Fennez.