Elektra, Op. 58, is a one-act opera by Richard Strauss, to a German-language libretto by Hugo von Hofmannsthal, which he adapted from his 1903 drama Elektra. The opera was the first of many collaborations between Strauss and Hofmannsthal. It was first performed at the Dresden State Opera on January 25, 1909. Elektra is a difficult work and is musically complex. A performance requires musicians with great stamina. The role of Elektra in particular is one of the most demanding in the dramatic soprano repertoire.