Often confused with G.B. Martini, Jean Paul Egide Martini (composer of 'Plaisir d'amour') employed a similar clean, diatonic harmonic language. This piece is a simple, structured exploration of the Barcarolle rhythm.
Maintain a steady, non-rushed tempo to capture the calm water imagery.
Comparable difficulty and character — good candidates for what to learn next.
Barcarole 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 Barcarole lasts about 3 minutes.
Barcarole 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 Arabesque No. 1 by Claude Debussy, Bells across the Meadows (Characteristic Intermezzo)) by Albert William Ketèlbey, French Suite No. 5 in G major by Johann Sebastian Bach — see the full similar-pieces list on this page.