Once the situation in the story had changed there would be an aria. The singer would sing a song which expressed his or her feelings. The aria had more musical interest than the recitative. Arias were usually in what we call “ABA” form or “Da Capo” form. There was a main section, then a middle part, then the main section was repeated (“Da Capo” means: “back to the beginning”). In the Da Capo section the singer usually improvised, adding many embellishments and ornaments. The aria gave performers the opportunity to show off their virtuosity.