This specific Clair de Lune by Zurfluh is a lesser-known work capitalizing on the evocative title. It utilizes lush, broken-chord textures to establish a dreamlike, impressionistic atmosphere.
At Henle 5 this is a late-intermediate piece — technically substantial, with musical demands to match. The main demands: sweeping arpeggio figures that must stay smooth across positions; a true singing tone, with the melody floating above the accompaniment; and careful pedaling — clarity depends on the foot as much as the fingers.
Beyond that, expect chord voicing — bringing out one note inside a handful of others.
Achieving a smooth, flowing arpeggio technique without accents is the primary goal.
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.
Clair de Lune (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 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 Clair de Lune (Op.136) lasts about 5 minutes.
Clair de Lune (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 Berceuse by Louis Moreau Gottschalk, 'Neath Swinging Roses by Albert William Ketèlbey, Albumblatt by Aleksandr Glazunov — see the full similar-pieces list on this page.