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.
Les fêtes d'Hébé Les fêtes d'Hébé, ou Les talens lyriques ("The Festivities of Hebe, or The Lyric Talents") is an "opéra-ballet" in a prologue and three "entrées" (acts) by the French composer Jean-Philippe Rameau. The libretto was written by Antoine Gautier de Montdorge (1707–1768). The work was first performed on 21 May 1739 by the Académie royale de musique at its theatre in the Palais-Royal in Paris..