b flat Rosenthaler Str. 13 10119 Berlin-Mitte 030 2833123 Berlin, Germany Performance at b flat Date Performance 2015-11-09 Johannes Bauer, Uli Gumpert, Frank Gratkowski and Michael Zerang 2015-03-31 Silke Eberhard, Frank Gratkowski, Louis Rastig and Michael Zerang 2014-07-22 Johannes Bauer, Uli Gumpert, Tobius Delius, Tony Buck and Michael Zerang 2012-07-30 Johannes Bauer, Rudi Mahall, Ulrich Gumpert, Michael Zerang and Tony Buck 2009-11-03 Johanes Bauer, Hermann Keller, Mats Gustafsson, Per-Åke Holmlander and Michael Zerang 2009-11-01 HAMMERIVER 2008-09-29 Berlin Meeting #4 2007-10-25 Michael Zerang Berlin Meeting II/1