Gebhard Ullmann-Steve Swell Quartet
Gebhard Ullmann - Steve Swell Quartet , 2010, at the Sud des Alpes,AMR, Geneva, Switzerland
Gebhard Ullmann "Basement Research" Steve Swell, Julian Arguelles, John Hebert, Tim Daisy "Gospel"
Steve Swell, Gebhard Ullmann, Hilliard Greene, Barry Altschul
Gospel from the CD 'Impromptus and Other Short Works' 2019
Conference Call quartet live in Switzerland - 2009 "Dreierlei" by Gebhard Ullmann
Das Kondensat - shox/variations on a masterplan
Rob Brown Quartet w Chris Lightcap, Steve Swell & Chad Taylor @ 24th Vision Festival, Roulette Inter
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