Gottschalk's Berceuse is one of his most delicate works, featuring ornate fioritura over a steady ostinato. It bridges the gap between virtuosic display and intimate poetic expression.
The main challenge is executing the rapid, delicate ornaments with perfect rhythmic grace over the constant lullaby pulse.
Comparable difficulty and character — good candidates for what to learn next.
Berceuse (Op.47) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Berceuse (Op.47) lasts about 5 minutes.
Berceuse (Op.47) 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 Bamboula by Louis Moreau Gottschalk, Berceuse by Louis Moreau Gottschalk, Ballade by Louis Moreau Gottschalk — see the full similar-pieces list on this page.