Clérambault's salon piece depicts the fluid motion of the sea through undulating accompanimental patterns. It is musically distinguished by its lush, late-Romantic harmonic language.
The performer must master the seamless integration of arpeggiated textures with the primary melody.
Comparable difficulty and character — good candidates for what to learn next.
Brise de mer (Op.20) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 Brise de mer (Op.20) lasts about 4 minutes.
Brise de mer (Op.20) 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 Brise de Mer by E. Clérambault, Brise lointaine by E. Clérambault, Berceuse from Dolly suite by Gabriel Fauré — see the full similar-pieces list on this page.