La damnation de Faust
Broadcasting on French radio allowed Cernay to enlarge her repertoire to roles in "Carmen", "Le roi d’Ys", "Le Chemineau", "La damnation de Faust", "Don Quichotte" and "La Lépreuse". She also sang in the first performance of surviving fragments of Chabrier's "Vaucochard et fils Ier" on 22 April 1941 at the Salle du Conservatoire.