Attributed to M. Longo, this work serves as an expressive character piece typical of Italian piano writing of the period. It highlights the importance of tonal balance between the outer registers.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: a true singing tone, with the melody floating above the accompaniment; chord voicing — bringing out one note inside a handful of others; and careful pedaling — clarity depends on the foot as much as the fingers.
Focus on balancing the inner voicing against the primary melodic line in the right hand.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Comme une nymphe is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 Comme une nymphe lasts about 3 minutes.
Comme une nymphe 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 Comme je t'aime by M. Longo, Body and Soul by Johnny Green, 12 Variations in B-flat major by Wolfgang Amadeus Mozart — see the full similar-pieces list on this page.