Frank Martin’s sketches for piano reflect his sophisticated, idiosyncratic harmonic language. This piece is a masterclass in economy, using sparse textures to create deep emotional resonance.
At Henle 6 this is an advanced piece that assumes fluent technique and rewards mature interpretation. The main demands: chord voicing — bringing out one note inside a handful of others; 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 a true singing tone, with the melody floating above the accompaniment.
The challenge lies in the complex voicing and sustaining the long, lyrical lines through subtle pedaling.
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.
Esquisse pour piano is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Esquisse pour piano lasts about 4 minutes.
Esquisse pour piano 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 Piano Sonata No. 14 'Moonlight', No. 2 by Ludwig van Beethoven, Berceuse Op.57 by Frédéric Chopin, Bruyeres by Claude Debussy — see the full similar-pieces list on this page.