Karl Marx | Karl Pilkington | Karl Lagerfeld | Karl G. Heider | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht | Karl Friedrich Schinkel | Karl Dönitz | Karl Jenkins | Karl Stefanovic | David Bohm | Karl Bodmer | Karl Wilhelm Friedrich Schlegel | Karl Malone | Karl Wolf | Karl Valentin | Karl Popper | Karl Malden | Karl Kesel | Karl Barth | Karl Richard Lepsius | Karl Philipp von Wrede | Karl Kautsky | Karl Johans gate | Karl-Heinz Kämmerling | Karl | Karl Weierstrass | Karl Story |
She remained a frequent performer at the Hungarian State Opera House and appeared often as a guest at the Bavarian State Opera, Berlin State Opera, and Semperoper under such conductors as Karl Böhm, Victor de Sabata, Wilhelm Furtwängler, Hans Knappertsbusch, Clemens Krauss, and Josef Krips.
Unger's other Salzburg Festival roles included Monostatos in two different stagings of The Magic Flute (1967, 1968 and 1970, staged by Oscar Fritz Schuh and conducted by Wolfgang Sawallisch; 1974 staged by Strehler and conducted by Karajan, and Valzacchi in Richard Strauss' Der Rosenkavalier (1969, staged by Rudolf Hartmann, designed by Teo Otto, and conducted by Karl Böhm).
His recordings include Die Meistersinger (with Claire Watson, 1963), Die Frau ohne Schatten (1963), Siegfried (conducted by Herbert von Karajan, 1968–69), Ariadne auf Naxos (conducted by Karl Böhm, 1969) and, from Bayreuth, Parsifal (with Irene Dalis as Kundry, led by Hans Knappertsbusch, 1962) and Lohengrin (with Anja Silja and Astrid Varnay, 1962).
There are a number of recordings of Reining: her Arabella (Salzburg, 1947, under Karl Böhm), Daphne (Vienna, 1944, Böhm), Ariadne (Vienna, 1944, Böhm), Eva in Die Meistersinger (Vienna, 1937, Toscanini), Marschallin in Der Rosenkavalier (Salzburg, 1949, George Szell; Salzburg, 1953, Clemens Krauss; Vienna, 1954 (Studio), Erich Kleiber; Vienna, 1955, Knappertsbusch) are all on disc.
She made numerous recordings with illustrious casts, including The Magic Flute with Karl Böhm, Fritz Wunderlich, Roberta Peters, and Dietrich Fischer-Dieskau.
Windgassen was the Siegfried in several complete, live Rings from Bayreuth that have been issued commercially on CD, conducted by such now-legendary figures as Hans Knappertsbusch, Clemens Krauss, Joseph Keilberth, and Karl Böhm.