Alderaanian opera was a form of opera that originated on the planet of Alderaan.
The Alderaanian senator Bail Prestor Organa was in attendance at the Alderaanian opera in 22 BBY. Accompanying him were his colleague Padmé Amidala and a pair of her handmaidens. During this event, Amidala had taken on the guise of a handmaiden, while her handmaiden Sabé was disguised as Amidala. Sabé, having not been able to attend the previous three Alderaanian opera seasons, was eager to see the current performance.
At a later soirée hosted by Organa, one of the performers approached Sabé, still posing as Amidala, and inquired about her opinion on the latest season, thereby interrupting her discussion with Supreme Chancellor Sheev Palpatine.