Hildegard Rütgers 1963. Between 1963 and 1965 she performed at the Salzburg Festival, the part of "Die Vertraute" (Her confidante) in a production of "Elektra" by Richard Strauss, conducted by Herbert von Karajan, alongside Astrid Varnay in the title role, and Martha Mödl, Hildegard Hillebrecht, James King and Eberhard Waechter in leading parts. The production of Mozart's "Die Zauberflöte" at the Salzburg Festival, with Rütgers as the Third Boy, was filmed and released as a made-for-television-movie in 1964. She appeared alongside Walter Kreppel as Sarastro, Roberta Peters as the Queen of the Night, Pilar Lorengar and Waldemar Kmentt as Pamina and Tamino,
Vienna State Opera The company recruits singers for children's roles in its productions from this opera school. Twice every season there is a special matinée performance of the opera school. In 2006, the 250th anniversary of Mozart's birth, they performed a 20-minute miniature opera "Der kleine Friedrich" arranged from songs of Mozart by Janko Kastelic and Claudia Toman. 80 minutes before each performance, cheap standing room tickets are sold ( to 4). These are popular with all age groups, and now have an almost legendary regular clientele, which is merciless in showing its displeasure with a performance loudly and unambiguously, but is even