Rolf Harris | Rolf Hochhuth | Rolf Singer | Thomas Kuhn | Rolf Köhler | Rolf Martinsson | Rolf Stommelen | Rolf Liebermann | Rolf Hachmann | Rolf-Dieter Heuer | Robert Lawrence Kuhn | Kuhn, Loeb & Co. | Edward C. Kuhn | Bowie Kuhn | Walt Kuhn | Steve Kuhn | Rolf Wolfshohl | Rolf van der Vlugt | Rolf Stranger | Rolf Steiner | Rolf Landauer | Rolf Gehring | Rolf Ellmer | Rolf Dieter Brinkmann | Rolf | Maggie Kuhn | Werner Kuhn | Wendt & Kühn | Rolf Wilhelm Brednich | Rolf Wallin |
Geller performed regularly in Germany and abroad as a soloist at festivals and clubs in various formations including some big bands as well as with such diverse artists as Knut Kiesewetter, Lennie Niehaus, Jiggs Whigham, Rolf Kühn, Slide Hampton, Buddy DeFranco, Lew Soloff, Charlie Mariano and Jan Lundgren.