A wonderful, elegant waltz in A-flat major, Valse impromptu begins Vivace scherzando with a thirteen-measure introduction and leggierissimo treble cadenza. The main theme contains a lively triplet figure on the downbeat of each measure whereas the contrasting and statelier second theme consists of slower note values. Each section repeats, creating a tight ABAB form with coda, which alternates both themes in a clever and enticing way. Though not particularly virtuosic, the Valse contains some challenging right-hand leaps and rapid cadenza-like passages. Liszt performed this waltz in his concerts in St. Petersburg in 1842.(The Liszt Companion)Please take note that the audio AND the sheet music ARE NOT mine. Change the quality to 480p if the video is blurry.Original audio: https://www.youtube.com/watch?v=nRD5RralCgAOriginal sheet music: imslp.org