Joan Faulkner, Cécile Solin, John Betsch, Muneer Abduhl Fatah,

Albert Mangelsdorff, Karen Bella, Barbara Bowland, Nippy Noya,

Mathias Stich, Werner Goos, Thsisungu Kalomba, Thomas Heidepriem, Uhuru, Anthony Braxton, Roscoe Mitchell, Bruce Bowland, Mary Sylvester, Richard Teitelbaum, Big Jay McNeely,

Hakim Ludin, Rüdiger Opperman, Mani Neumaier, Schröder,Jean Chaine, Lomani Mondonga, Bia Assis, Mike Schweizer, Fred Casimir, Wolfy Ziegler, Joy Fleming, Mike Schneider, Jennifer Cobi, Meggy Patay, Stefan Zimmermann, Hiram Mutschler, Steve Smith (Journey), Armin Rühl (Grönemeyer), Allan Mostert (Quintessence) and many others.........................

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BANDS & PROJECTS

Healing Forces,City/6/tett, Thsisungu Kalomba & Kassala, Freiburg Jazz Orchestra, Christian Knobel Group, Dr.Rhythm Unique World Ensemble, Folk Opera, Cosmic Soul Explosion, Aguti, Joan Faulkner Band, Karen Bella and the Cozmic Wheels,

Turn & Taxi, Flying Veena, piano conclave, Betsch Fatah Knobel.