This piece is a characteristic piano miniature by the French composer Gabriel Pierné. It is distinctive for its graceful melodic lines and light, salon-style charm typical of the late 19th-century French school.
The primary challenge lies in maintaining a delicate touch and clear articulation across the melodic phrases.
Comparable difficulty and character — good candidates for what to learn next.
Bouton d'or is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 3.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Bouton d'or lasts about 2 minutes.
Bouton d'or is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Berceuse by Gabriel Pierné, Barcarolle by Gabriel Pierné, Black Beauty by Duke Ellington — see the full similar-pieces list on this page.