LE NOZZE DI FIGARO: Anne Sofie von Otter sings "Abendempfindung" 

Musical fanservice I guess.

Es passt doch und ist von Mozart. Macht man jetzt, vgl. letztes Jahr TITUS in Salzburg

This is genius

It happens more often than you'd think! Mozart himself would import new music into a revival of an opera (ex. Dalla sua pace and Mi Tradi Quell'alma Ingrata added to the Vienna version of Don Giovanni.) In Peter Sellar's production of Cosi Fan Tutte, the tone of the opera was darker and Dorabella's "E amore un ladroncello" was deemed to be too upbeat. Sellars rather ingeniously imported a Mozart concert aria, "Vado, ma dove," in its place and it works beautifully! It's available on RU-vid, I would suggest searching it out.

Wonderful. Thanks for posting. I like the staging too