en CB01 OFFICIAL. Zaide, the unfinished opera by Mozart, in a production directed by Peter Sellars which was the focus of controversy at the Aix-en-Provence Festival in 2008. Composed in 1780, two years before The Abduction from the Seraglio, Zaide contains melodies of incredible inventiveness. The opera lacks an overture, a finale and many spoken dialogues, yet the missing elements allowed Sellars to elaborate and transform the work into a grand manifesto against slavery. Sellars' vision provoked a scandal, as it had previously in Vienna and London, but the Cour de l'Archevêché has experienced plenty of scandals.