Les Mamelles de Tirésias (The Breasts of Tiresias) is an opéra bouffe by Francis Poulenc, in a prologue and two acts based on the eponymous play by Guillaume Apollinaire. The opera was written in 1945 and first performed in 1947. Apollinaire's play, written in 1903, was revised with a sombre prologue by the time it premiered during World War I...