The composer and pianist Stefan Wirth is one of the most versatile musicians of his generation. He is very active as a pianist of contemporary music and plays a permanent member of the Collegium Novum Zurich and the Ensemble Contrechamps (Geneva). Stefan Wirth has worked with Heinz Holliger on various occasions, for example as a soloist with the Orchestra della Svizzera italiana or at the Ittinger Whitsun Concerts. In 2013, he worked with Pierre Boulez whose second piano sonata. Stefan Wirth is also a member of the four-wing formation "Gershwin Piano Quartet", with which he has performed at important festivals, including the Schleswig-Holstein Music Festival, the Festival de Musique de Menton, the Schwetzinger Festspiele, the Mozarteum Basileiro in São Paulo, the Rheingau Music Festival, the Ruhr Piano Festival and the Menuhin Festival Gstaad.