Between Pelléas et Mélisande and Riders to the Sea, which one has more acts?
Pelléas et Mélisande (opera) Pelléas et Mélisande ("Pelléas and Mélisande") is an opera in five acts with music by Claude Debussy. The French libretto was adapted from Maurice Maeterlinck's Symbolist play "Pelléas et Mélisande". It premiered at the Opéra-Comique in Paris on 30 April 1902 with Jean Périer as Pelléas and Mary Garden as Mélisande in a performance conducted by André Messager, who was instrumental in getting the Opéra-Comique to stage the work. The only opera Debussy ever completed, it is considered a landmark in 20th-century music.
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..