Which opera has more parts including acts and tableaux, Le roi d'Ys or Stiffelio?
Le roi d'Ys Le roi d'Ys ("The King of Ys") is an opera in three acts and five tableaux by the French composer Édouard Lalo, to a libretto by Édouard Blau, based on the old Breton legend of the drowned city of Ys. That city was, according to the legend, the capital of the kingdom of Cornouaille.
Callirhoé Callirhoé is an opera by the French composer André Cardinal Destouches. It takes the form of a "tragédie en musique" in a prologue and five acts. The libretto, by Pierre-Charles Roy, is based on a story from "The Description of Greece" by Pausanias (see Coresus). The opera was first performed on December 27, 1712, by the Académie royale de musique at the Théâtre du Palais-Royal in Paris. Destouches reworked the score for a revival on 22 October, 1743. This version ends abruptly with the death of Corésus.