 She recorded Mahler's Fourth Symphony, singing the Finale's 'Child's View of Heaven', with the Berlin Philharmonic under Herbert von Karajan for Deutsche Grammophon.Mathis also became a sought-after teacher.Parts of Mozart operas were one of her specialties, with her roles including Cherubino in "Le nozze di Figaro", Zerlina in "Don Giovanni", Despina in "Così fan tutte" and Pamina in "Die Zauberflöte".