Ullmann, Fred Lonberg-Holm, Michael Zerang (NotTwo Records 2022) The Clarinet Trio Transformations and Further Passages w. Gebhard Ullmann, Jürgen Kupke, Michael Thieke (Leo Records 2022) Ullmann/Swell 4 We're Playing In Here? w. Steve Swell, Gebhard Ullmann, Hilliard Greene, Barry Altschul (No Business Records 2022) Sideman albums Die Elefanten: Nervous City (Nektar, 1985; with Chuck Purrington, Joachim Litty, Thomas Wegel, Andreas Weiser, Burkhard Schäffer, Hans Vogt, Klaus M. Staffa, Klaus Pankoke, Uli Moritz) Die Elefanten: Immer Alle, Immer Ich (Nektar, 1987; with Michael Merkelbach, Joachim Litty, Michael Rodach, Gerd Kaulard, Klaus M. Staffa, Andreas Weiser, Nikolaus Schäuble, Uli Moritz) Die Elefanten: Wasserwüste (Nabel, 1989, with Joachim Litty, Michael Rodach, Andreas Weiser, Klaus M. Staffa, Nikolaus Schäuble, Ulrich Moritz) Silent Jazz Ensemble: Silent Jazz Ensemble (Biber, 1989; with Helmut Engel-Musehold, Volker Heller, Elena Ledda, Johannes Wohlleben, Friedemann Witecka, Martin Lillich, Ulrich Moritz) Tayfun with Otto Sander: Eisen, Kohle und Zucker (Open Minds, 1991; with Hans Hartmann, Michael Clifton, Topo Gioia) Silent Jazz Ensemble: Kashina (Biber, 1991) Niko Schäuble Tibetan Dixie: Nothing too Serious (Larrikin, 1992) Günter Lenz: Springtime: Major League (Bellaphon, 1992; with Claus Stötter, Ernst-Ludwig Petrowsky, Bob Degen, Thomas Cremer) Die Elefanten: Faust (Klangräume, 1994) Silent Jazz Ensemble: Birds of Passage (Biber, 1996) Joe Fonda: Full Circle Suite (CIMP, 1999; with Taylor Ho Bynum, Chris Jonas, Kevin Norton) Tayfun: Dreams and Dances for a Silent Butterfly (Moods, 2001; with Eddie Hayes, Tobias Morgenstern, Uli Bartel, Matias de Oliveira Pinto, Renaud Garcia-Fons, Hans Hartmann, Andreas Weiser, Topo Gioia) Joe Fonda Loaded Basses (CIMP, 2006; with Claire Daly, Joe Daley, Michael Rabinowitz, Gerry Hemingway) Stereo Lisa Anno Onno Monno (Jazzwerkstatt, 2008; with Aki Sebastian Ruhl, Almut Kühne, Benjamin Weidekamp, Christian Marien, Ibadet Ramadani, Jürgen Kupke, Matthias Müller, Richard Koch, Michael Haves, Simon Harrer) Scott DuBois Quartet Banshees (Sunnyside, 2008) Sadiq Bey Slow the Ear (Allzeit Musik, 2009, with Kevin Ellington Mingus, Mfa Kera, Andrea Rost, Sophie Gothier) Günter Lenz Springtime Strict Minimum (Jazzwerkstatt, 2010; with Claus Stötter, Ernst-Ludwig Petrowsky, Dieter Glawischnig, Bill Elgart; rec. 2007) Chris Dahlgren & Lexicon Mystic Maze (Jazzwerkstatt, 2010) Scott DuBois Quartet Black Hawk Dance (Sunnyside, 2010) Scott DuBois Quartet Landscape Scripture (Sunnyside, 2012) Hannes Zerbe Orchester Eisleriana (JazzHausMusik, 2012) Hannes Zerbe Orchester Erlkönig (JazzHausMusik, 2013) Hans Hassler Hassler (Intakt, 2013) Satoko Fujii Orchestra Berlin Ichigo Ichie (Libra, 2015), with Richard Koch, Nikolaus Neuser, Matthias Müller, Matthias Schubert, Paulina Owczarek, Natsuki Tamura, Kazuhisa Uchihashi, Jan Roder, Michael Griener, Peter