German clarinet player Theo Jörgensmann (Bottrop 1948) came under the attention of the Dutch audience through the Contraband of Willem van Manen. German saxophone player and (bass) clarinet player Eckard Koltermann also played in that particular orchestra. Both Jörgensmann as well as Van Manen were part of his group Collage 11. In addition a number of duo and trio pieces with clarinet player Perry Robinson.
Sources:
Contraband live at the Bimhuis (BVHaast cd 8906)
Collage 11: Achtung Wir Senden (kip 4)
Materialized Perception (NOM 1992)