Which has more acts, Die Walküre or La fille du régiment?
Die Walküre Die Walküre (The Valkyrie), WWV 86B, is a music drama in three acts by Richard Wagner with a German libretto by the composer. It is the second of the four works that form Wagner's cycle "Der Ring des Nibelungen" ("The Ring of the Nibelung").
La naissance de la lyre La naissance de la lyre ("The Birth of the Lyre") is an opera (styled a "conte lyrique") in one act by the French composer Albert Roussel. The libretto, by Théodore Reinach, is based on the satyr play "Ichneutae" by Sophocles. It was first performed at the Paris Opéra on 1 July 1925 with choreography by Bronislava Nijinska.