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.
Manon Manon (] ) is an "opéra comique" in five acts by Jules Massenet to a French libretto by Henri Meilhac and Philippe Gille, based on the 1731 novel "L’histoire du chevalier des Grieux et de Manon Lescaut" by the Abbé Prévost. It was first performed at the Opéra-Comique in Paris on 19 January 1884, with sets designed by Eugène Carpezat (Act I), Auguste-Alfred Rubé and Philippe Chaperon (Acts II and III), and Jean-Baptiste Lavastre (Act IV).