This piece exemplifies the dreamy, impressionistic tendencies that began to emerge in late-romantic piano literature. It is characterized by its ethereal melodic lines and fluid, rolling accompaniment.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: a true singing tone, with the melody floating above the accompaniment; rubato that must breathe naturally without losing the pulse; and careful pedaling — clarity depends on the foot as much as the fingers.
Beyond that, expect wide stretches that reward larger hands and clever redistribution.
The primary challenge is maintaining a continuous, flowing line through the wide-reaching arpeggiated accompaniment.
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.
Comme dans un rêve is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 Comme dans un rêve lasts about 3.5 minutes.
Comme dans un rêve 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 Clair de Lune by Colette Mourey, Ballade by Henri Büsser, Claire de Lune by Claude Debussy — see the full similar-pieces list on this page.