Do both Simon Boccanegra and Le roi d'Ys have the same number of acts?
Simon Boccanegra Simon Boccanegra (] ) is an opera with a prologue and three acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on the play "Simón Bocanegra" (1843) by Antonio García Gutiérrez, whose play "El trovador" had been the basis for Verdi's 1853 opera, "Il trovatore".
Le maréchal ferrant Le maréchal ferrant ("The Blacksmith") is a 1761 French two-act "opéra comique" with spoken dialogue and music composed by François-André Danican Philidor as well as several "vaudevilles" (popular old songs with new words), which were typically included in "opéras comiques" of the time. The libretto is by Antoine François Quétant, after one of the stories in Boccaccio's "Decameron" (VII, 1), with verses for the "ariettes" by Louis Anseaume and a plan devised by Serrière.