Der Fächer is a virtuosic miniature by Ernst Toch, known for his motoric and rhythmically driven compositional approach. It is characterized by swift, sharp articulation and sudden shifts in texture.
At Henle 5 this is a late-intermediate piece — technically substantial, with musical demands to match. The main demands: fast passage work that stays light and even at tempo; precise articulation — the difference between crisp and blurred is the piece; and sharp dynamic and character contrasts held together in one arc.
Success depends on achieving precise rhythmic alignment between the hands at high velocity.
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.
Der Fächer (Op.51) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 7.
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 Der Fächer (Op.51) lasts about 3 minutes.
Der Fächer (Op.51) 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 Bunte Suite by Ernst Toch, Fantaisie-Impromptu in C-sharp minor by Frédéric Chopin, Alexander's Ragtime Band by Irving Berlin — see the full similar-pieces list on this page.