Alonso e Cora
Alonso e Cora is an opera seria in three acts by Francesco Bianchi. The libretto was by Giuseppe Foppa, after Ferdinando Moretti's Idalide, o sia La vergine del sole, as used by Giuseppe Sarti in Milan in 1783. The original source of this text was in turn Jean François Marmontel's Les Incas, ou La destruction de l'empire du Pérou.
The opera was notable for its spectacular effects which included sea scenes and a volcanic eruption, and its opulent music which involved concertato choruses, ensembles, and a ballet contributing to the grand conclusion in the last act.
Simon Mayr also set a version of the story, under the same title, for Milan in 1803.