Gustav-Mahler-Youth Orchestra

European Youth Orchestra

Junge Deutsche Philharminie

Budapest Festival Orchestra

Deutsche Kammerphilharmonie Bremen

Radio Sinfonie Orchester Berlin , RSB

Katharina Bunners (Co. Principal Bass, NDR Hamburg)
Plays a 4 string orchestral bass made in 2005

Dominik Greger ( Professor, Weimar Musikhochschule)
Plays a solobass

Grzegorz Jandulski (Principal Bass, Hagen Theater)
Plays a 5 string and solobass made in 2009

Rüdiger Ludwig (co. principal bass, NDR Hannover)
Plays a 5 string orchestral bass made 2002

Prof. Christopf Schmidt, Kontrabassprofessor,  Frankfurt Musikhochschule
solobass und 5 saiter 2012

Sebastian Breidenstein, Solobassist SWR Freiburg Baden-baden
5 saiter 2013

Karsten Heinz (Principal Bass, Gewandhausorchestra Leipzig)
Plays a 5 string orchestral Bass made in 2009

Jürgen Normann (Principal Bass, NDR Hannover)
Plays a 5 string orchestral bass made in 2008

NDR Hamburg

NDR Hannover

Ulm Theater Orchester,

English Chamber Orchestra

Belgisches National Orchester, Brüssel,

Ying Lai Green (Co. principal bass, Rotterdam Philharmonic Orchestra)
Plays a 4 string orchestral bass made in 2003 

Symphony  Orchester Granda, Spanien

Sinfonia Varsovia, Poland