L'incoronazione di Poppea
In 1993, performing with John Eliot Gardiner, Backes appeared as Barbarina in Mozart’s "Le nozze di Figaro" at the Théâtre du Châtelet of Paris, at the Royal Concertgebouw in Amsterdam, and recorded it for Deutsche Grammophon Archiv. She recorded with Gardiner also for Deutsche Grammophon Valetto in Monteverdi's "L'incoronazione di Poppea" and Papagena in Mozart's "Zauberflöte".