Ein Walzertraum

Ein Walzertraum (A Waltz Dream) is an operetta by Oscar Straus with a German libretto by Leopold Jacobson [de] and Felix Dörmann [de], based on the novella Nux, der Prinzgemahl (Nux, the Prince Consort) by Hans Müller-Einigen from his 1905 book Buch der Abenteuer (Book of Adventures).

Following the success of the operetta in Vienna, productions of the work, under the name A Waltz Dream, were mounted in English for premieres at the Chestnut Street Opera House in Philadelphia on 6 January 1908, in New York City at the now-demolished Broadway Theatre on 27 January 1908 (with an English libretto adapted by Joseph W. Herbert),[1] and in London on 7 March 1908 at the Hicks Theatre[2] (adapted by Basil Hood, with lyrics by Adrian Ross, starring Gertie Millar, W. H. Berry and later Robert Evett, Jessie Broughton and Arthur Williams).

The international success of the operetta exceeded Straus's expectations, and special praise was reserved for the famous waltz theme from act 2.

Cyril Ritchard made his debut in the chorus at age 19 when this work was performed in 1917 at Her Majesty's Theatre, Sydney, Australia.

[citation needed] In the fictional state of Rurislavenstein, the scene opens in the glittering and the splendour of the Prunksaal des Schlosses Hall of the Prince of Flausenthurn.

Niki also distanced himself from the Prince's favour when the former acknowledged the hasty marriage and raised suggestions for a separate bedroom from the newly-wed Princess.

Niki, as expected, warms to the new surroundings which comes close to his heart and soon willingly accepts Princess Helene without restrictions although he clearly misses the pretty Franzi.