Direction of production on more than 800 concerts in Switzerland for Opus One between 1994 and 2015. Some names:
Rolling Stones – Mickael Jackson – Ben Harper – Jamiroquai – Eros Ramazzotti – Zucchero – Sting – Charles Aznavour – James Blunt – Metalica – PJ Harvey – Marla Glen – Indochine – Deep Purple – Pink – Peter Gabriel