What genre of theater are Le siège de Corinthe and Les mamelles de Tirésias?
Le siège de Corinthe: Le siège de Corinthe (The Siege of Corinth) is an opera in three acts by Gioachino Rossini set to a French libretto by Luigi Balocchi and Alexandre Soumet, which was based on the reworking of some of the music from the composer's 1820 opera for Naples, "Maometto II", the libretto of which was written by Cesare della Valle. 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. Les mamelles de Tirésias:  The opera was written in 1945 and first performed in 1947.
opera