David writes and arranges music for film and radio. He has been awarded with the Preis der Deutschen Schallplattenkritik. He shared stage with the Uli Beckerhoff Group, Alex Gunias and Barry Ryan.
Klaus has been leading own ensembles like „Streetscenes“ and has played together with David and Wolfgang in the Klaus Fey & Uwe Granitza Quintett for several years. He also played together with Sigi Busch, Uli Beckerhoff and Florian Poser.