This Barcarolle is a quintessential example of Lyadov's delicate, introspective writing for the keyboard. It is distinguished by its graceful, undulating accompaniment and a refined melodic line that evokes the gentle rocking motion of a boat.
The primary challenge is maintaining a seamless, fluid melody against the persistent, gentle rhythmic pulse of the left hand.
Comparable difficulty and character — good candidates for what to learn next.
Barcarolle (Op.44) 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 Barcarolle (Op.44) lasts about 4 minutes.
Barcarolle (Op.44) 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 Am Rhein by Joachim Raff, Barcarolle by Anatoly Lyadov, Blackbird's Song by Cyril Scott — see the full similar-pieces list on this page.