This piece mirrors the structure of Op. 3, focusing on a clear, balanced dialogue between melody and simple harmonic support. It is a highly idiomatic example of late-18th-century keyboard composition.
At Henle 3 this is a late-beginner piece — comfortable hands-together playing is assumed, and musical shaping starts to matter. The main demands: precise articulation — the difference between crisp and blurred is the piece; Alberti-bass accompaniment kept quiet and even under the melody; and ornaments that need to sound effortless, not squeezed in.
Beyond that, expect fine finger independence within the hand.
At roughly 8 minutes, stamina and memory become part of the challenge — plan practice in sections.
Pay close attention to the articulation marks to bring out the Classical style phrasing.
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.
Fantaisie et Sonate (Op.4) is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 5.
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 Fantaisie et Sonate (Op.4) lasts about 8 minutes.
Fantaisie et Sonate (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 Fantaisie et Sonate by Johann Wilhelm Hässler, Caprice et Sonate by Johann Wilhelm Hässler, Caprice et Sonate by Johann Wilhelm Hässler — see the full similar-pieces list on this page.