- Ensemble Phoenix Basel, Jens Fuhr, Beat Schneider, Edicson Ruiz, Zurich Vocal Ensemble, Barbara Bolliger, Ruben Drole, Xasax, Peter Siegwart, Eric Ferrand-N'Kaoua, Sabine Bartschi, Philippe Racine, Brigitte Meyer, Jürg Henneberger, Raphael Oleg, Martina Bovet, Peter Hirsch, Michael Kleiser, Felix Renggli, Ernesto Molinari, Zurich Collegium Novum
