Gisela Litz was a German contralto

Contralto

Contralto is the deepest female classical singing voice, with the lowest tessitura, falling between tenor and mezzo-soprano. It typically ranges between the F below middle C to the second G above middle C , although at the extremes some voices can reach the E below middle C or the second B above...

. She sang frequently at the Bayreuth Festival

Bayreuth Festival

The Bayreuth Festival is a music festival held annually in Bayreuth, Germany, at which performances of operas by the 19th century German composer Richard Wagner are presented...

. A recording is available of her singing as one of the Rhinemaidens

Rhinemaidens

The Rhinemaidens are the three water-nymphs who appear in Richard Wagner's opera cycle Der Ring des Nibelungen. Their individual names are Woglinde, Wellgunde, and Flosshilde , although they are generally treated as a single entity and they act together accordingly...

 in Der Ring des Nibelungen

Der Ring des Nibelungen

Der Ring des Nibelungen is a cycle of four epic operas by the German composer Richard Wagner . The works are based loosely on characters from the Norse sagas and the Nibelungenlied...

 conducted by Clemens Krauss

Clemens Krauss

Clemens Heinrich Krauss was an Austrian conductor and opera impresario, particularly associated with the music of Richard Strauss.-Biography:...

in 1953.

She sang the part of "Widow Bigbeck" in the recording of the Brecht/Weill opera "The Rise and Fall of the City of Mahagonny" by the
Norddeutscher Rundfunk orchestra and chorus.