Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Blasorchester Stadtmusik Luzern
- Musikschule Stadt Luzern
- Chor der Nationen Luzern
- Bach Ensemble Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- argovia philharmonic
- 21st Century Orchestra
- GC Events Sagl
- Good News Productions AG Glattpark
- 21st Century Orchestra