The Salle De Musique in La Chaux-de-Fonds was designed by architects René Chapallaz and Hans Bieri and built in 1951. It is renowned for its acoustics: more than 450 recordings for prestigious music labels have taken place here. To name just one, Keith Jarret recorded here in 1991 for the ECM label Dimitri Shostakovitch’s 24 Préludes & Fugues op.87. And the Chilean pianist Claudio Arrau even said: “From the point of view of sound, the most beautiful piano in the world is in La Chaux-de-Fonds, in a delightful little concert hall. I made my best recordings there”.