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.
La mort d'Abel La mort d'Abel ("The Death of Abel") is an opera by the French composer Rodolphe Kreutzer. The libretto, by François-Benoît Hoffman, deals with the Biblical story of Cain and Abel. It was first performed in a three-act version at the Salle Montansier by the Académie Impériale de Musique (the Paris Opéra) on 23 March 1810 under the title "Abel". A revival at the Salle Le Peletier in 1823, in which the second act was cut, impressed the young Hector Berlioz.