Moszkowski's take on the Fantaisie-Impromptu genre is highly idiomatic to the piano, showcasing his signature flair for elegant passagework. It utilizes a lighter, more salon-oriented language than Chopin's.
At Henle 7 this is a late-advanced work — the technical demands are serious and sustained. The main demands: fast passage work that stays light and even at tempo; sweeping arpeggio figures that must stay smooth across positions; and a waltz lilt that needs charm and a flexible left hand.
Beyond that, expect rubato that must breathe naturally without losing the pulse.
Focus on the precise articulation of the rapid triplet figures while maintaining a graceful waltz-like flow.
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-Impromptu (Op.6) is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 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-Impromptu (Op.6) lasts about 4 minutes.
Fantaisie-Impromptu (Op.6) 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 Caprice espagnol by Moritz Moszkowski, Der Schäfer putzt sich zum Tanze by Moritz Moszkowski, Fackeltanz by Moritz Moszkowski — see the full similar-pieces list on this page.