Composed in 1883 and published by Hamelle in the same year. This year also marked Fauré's marriage to Marie Fremiet, daughter of a sculptor, and saw the composition of numerous early piano works.

This Impromptu in A-flat major, marked Allegro, is written in a three-part form with a coda. The main theme is a simple melody set against a left-hand accompaniment that repeats with a uniform rhythm. The middle section, marked Molto meno mosso, creates a contemplative atmosphere, yet its development reveals a hidden energy.