Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Zürcher Kammerorchester
- Ensemble Corund
- argovia philharmonic
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Hochschule Luzern - Musik
- GMkonzerte / Odessa Classics
- Lucerne Chamber Circle
- Act Entertainment AG Basel