Corou de Berra is a poliphonic chant ensemble from the south Alps, directed by Michel Bianco. Perfoming traditional songs from their native region (with its traditional poliphonic chant technique), Corou de Berra already released eleven albums, hundreds of concerts and several artistic colaborations, including with Antonella Ruggiero, Francis Cabrel, André Ceccarelli, Gianmaria Testa and Etienne Perruchon