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Fabian & Claude Walter, Zürich (CH) 2 Nov 2016 – 12 Nov 2016
with Sonja Braas, Balthasar Burkhard, Georg Gerster, Peter Hebeisen, Hugo Suter, Christian Vogt
Fabian & Claude Walter, Basel (CH) 11 Jun 2019 – 16 Jun 2019
with Sonja Braas, Georg Gerster, Roger Humbert, Romeo Vendrame
