The date of composition for the piece is not clear; however it appears to have been composed in the years between 1842, and 1852, the year in which it was published. This is the version commonly heard today; however, there exists another version (c.1880, S.213a) described as "Valse-Impromptu with later additions". This longer edition was recently recorded for the first time by Australian pianist Leslie Howard as part of his complete recordings of Liszt's piano works. Performances of the Valse last approximately 5 minutes 30 seconds, depending of course on the pianist. The extended version lasts about 1.30 minute longer.

Date of composition 1852
First published 1852, Schuberth in Leipzig, Germany
Type Waltz
Tonality A-flat
Catalogue S. 213
Approx. duration 5 minutes
Instruments Piano
Arrangements Franz Liszt: Valse-Impromptu in A-flat major, S. 213a
Autotranslations beta Franz Liszt: Valse-Impromptu en la bémol , S. 213
Franz Liszt: Valse-Impromptu in la bemolle , S. 213
Franz Liszt: Valse-Impromptu as-, S. 213