Władysław Żeleński’s contribution to the Barcarolle genre reflects the late Romantic style with lush harmonies. It is characterized by its evocative, song-like phrasing and expressive harmonic shifts.
The player must master the use of rubato to convey the fluid, watery nature of the barcarolle style.
Comparable difficulty and character — good candidates for what to learn next.
Barkarola 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 Barkarola lasts about 5 minutes.
Barkarola 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 Berceuse by Władysław Żeleński, Berceuse by Władysław Żeleński, Liebestraum No. 3 in A-flat major by Franz Liszt — see the full similar-pieces list on this page.