Hünten utilizes exotic scales and rhythms characteristic of the 'alla turca' fascination in 19th-century European piano music. It is an effective, if formulaic, example of the era's light-hearted exoticism.
At Henle 5 this is a late-intermediate piece — technically substantial, with musical demands to match. The main demands: ornaments that need to sound effortless, not squeezed in; 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.
Achieving the correct character requires crisp, distinct articulation in the scale-based passages.
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.
Lesser-known works by the same hand, at a comparable level.
Fantaisie arabe (Op.136) 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 Fantaisie arabe (Op.136) lasts about 6 minutes.
Fantaisie arabe (Op.136) 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 Fantaisie sur 'La Donna del Lago' by François Hünten, Fantaisie brillante sur 'Nabucco' by François Hünten, Elfenspiel by Carl Heymann — see the full similar-pieces list on this page.