[2][1] More active in concert than on the opera stage, she has collaborated with conductors such as Moshe Atzmon, Wolfgang Gönnenwein, Erich Leinsdorf, Bruno Maderna and Hiroshi Wakasugi.
[2] In 1971, Kelly appeared at the Mozartsaal of the Konzerthaus in Vienna, singing Lieder by Purcell, Schubert and Strauss, among others, accompanied by Norman Shetler.
[3] She recorded songs by composers including Mozart, Schumann, Wolf and Zemlinsky with pianist Werner Genuit.
[6] In Wiesbaden's Marktkirche, she sang with the choir Rheingauer Kantorei, both in 1979 Mendelssohn's oratorio Elias with the Radiosinfonieorchester Frankfurt alongside Erich Wenk in the title part,[7] and in 1980 Honegger's König David, with Claudia Eder as the young David and Gerd Nienstedt as the narrator.
[2] Her students have included Juan Carlos Echeverry, Julia Kleiter,[9] Ulrike Maria Maier [de] and Christiane Oelze.