Wiener Launen-Walzer (Vienna Fancies Waltz), opus 6, is a waltz composed by Johann Strauss I.
It premiered in the ballroom of the Weisser Schwan on 26 November 1827.
It was one of the first of Strauss' works to contain a definite form: an introduction, the waltz themes, and a coda.
The principal waltz theme is in the key of E-flat major.
This article about a classical composition is a stub.