Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Konzertchor Klangwerk Luzern
- Radio Pilatus AG *
- Lucerne Festival
- GC Events Sagl
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Maya Classics
- eco2friendly, c/o Otto Fischer AG
- Summer Festival | LUCERNE FESTIVAL
- Klavier-Fest | LUCERNE FESTIVAL