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
Steve Swell Quartet on Evolving Music/Evolving Voice Vocal Series
Gebhard Ullmann - Almost Twenty-Eight
Gebhard Ullmann "BassX3" @ Jazz and More Sibiu 2010
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