Abeille’s Op. 4 Fantasia is a quintessential example of late-Classical keyboard writing. It balances formal rigidity with moments of surprising harmonic invention and technical flair.
At Henle 5 this is a late-intermediate piece — technically substantial, with musical demands to match. The main demands: Alberti-bass accompaniment kept quiet and even under the melody; precise articulation — the difference between crisp and blurred is the piece; and fine finger independence within the hand.
Beyond that, expect fast passage work that stays light and even at tempo.
Crisp, defined articulation in the rapid passage work is necessary to achieve a Classical sound.
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.
Fantasia in A major (Op.4) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 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 Fantasia in A major (Op.4) lasts about 7 minutes.
Fantasia in A major (Op.4) 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 Maple Leaf Rag by Scott Joplin, 12 Variations on "Ah vous dirais-je, Maman" by Wolfgang Amadeus Mozart, 'S Wonderful by George Gershwin — see the full similar-pieces list on this page.