Act I

Seville. Night. Count Almaviva comes to the house of Doctor Bartolo and serenades Rosina, whom Bartolo keeps confined to the house. Figaro an old friend of Count, who knows all the town’s secrets and scandals, explains to Almaviva that Rosina is Bartolo’s ward, not his daughter, and that the doctor intends to marry her. Figaro devises a plan: the count will disguise himself as a drunken soldier with orders to be quartered at Bartolo’s house so that he may gain access to Rosina. Almaviva is excited and Figaro looks forward to a nice cash pay-off.

Rosina reflects on the voice that has enchanted her and resolves to use her considerable wiles to meet the man it belongs to — as Almaviva has led her to believe, a poor student named Lindoro. Bartolo appears with Rosina’s music master, Don Basilio. Basilio warns Bartolo that Count Almaviva, who has made known his admiration for Rosina, has been seen in Seville. Bartolo decides to marry Rosina immediately. Basilio suggests slander as the most effective means of getting rid of Almaviva. Figaro, who has overheard the plot, warns Rosina and promises to deliver a note from her to Lindoro. Bartolo suspects that Rosina has indeed written a letter, but she outwits him at every turn. Bartolo warns her not to trifle with him.