This piece is a standard 19th-century salon work characterized by the signature gently rocking compound meter of the barcarolle genre. It emphasizes a singing melodic line over broken-chord accompaniment typical of Sydney Smith's idiomatic piano writing.
The primary challenge is maintaining a fluid, balanced tone while managing the left-hand broken chord patterns.
Comparable difficulty and character — good candidates for what to learn next.
Barcarolle (Op.88) 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 Barcarolle (Op.88) lasts about 4 minutes.
Barcarolle (Op.88) 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 Bohemian Girl - Second Fantasia by Sydney Smith, Bergerette. Danse gracieuse. by Sydney Smith, Bergerette by Sydney Smith — see the full similar-pieces list on this page.