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