Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Chor der Nationen Luzern
- Bach Ensemble Luzern
- Pro Senectute Kanton Luzern
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Gadget abc Entertainment Group
- GMkonzerte / Odessa Classics
- Pro Senectute Kanton Luzern