Die Frau ohne Schatten

Die Frau ohne Schatten (The Woman without a Shadow) is an opera in three acts by Richard Strauss with a libretto by his long-time collaborator, the poet Hugo von Hofmannsthal. When the work premiered in Vienna on 10 October 1919, critics and audiences were unenthusiastic (many cited problems with Hofmannsthal's complicated and heavily symbolic libretto). Today, the opera is considered by many to be Strauss's finest work in the genre, although less frequently produced than some of the others.
See more at Wikipedia.org...