from Act II of the Italian opera Lucio Silla
by Wolfgang Amadeus Mozart
Libretto: Giovanni de Gamerra
, proscribed senator
Voice Part: soprano Fach: male soprano|lyric soprano|lyric mezzo
Setting: an archway outside
Synopsis: Cecilius appears with a sword to go after Sulla and Cinna tries to restrain him. When Cinna asks him why he is doing it, Cecilius responds that Junia's father came to him in a dream and demanded that he kill Sulla at once. He then launches into his aria saying that the sudden trembling he feels in his chest could be anger or it could be hope. Whatever it is, though, it will go after Sulla with a vengence.