Which contained more acts, Macbeth or Les mamelles de Tirésias?
Macbeth (opera): Macbeth (] ) is an opera in four acts by Giuseppe Verdi, with an Italian libretto by Francesco Maria Piave and additions by Andrea Maffei, based on William Shakespeare's play of the same name. Les mamelles de Tirésias: Les mamelles de Tirésias ("The Breasts of Tiresias") is an "opéra bouffe" by Francis Poulenc, in a prologue and two acts based on the play of the same title by Guillaume Apollinaire.
Macbeth