This G minor barcarolle by Praeger utilizes a slightly more somber palette than its G major counterpart. It is distinctive for its use of minor-key longing and a fluid, song-like structure.
Balance the melodic intensity against the rhythmic, pulsing left-hand part to avoid a sluggish tempo.
Comparable difficulty and character — good candidates for what to learn next.
Barcarole in G minor 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 Barcarole in G minor lasts about 4 minutes.
Barcarole in G minor 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 Airs by Ferdinand Praeger, Allegro con brio in B minor by Ferdinand Praeger, Allegretto in A-flat major by Ferdinand Praeger — see the full similar-pieces list on this page.