Weckerlin, primarily known for vocal and folk song arrangements, brings a vocal sensibility to this piano Berceuse. It utilizes elegant harmonic shifts that evoke a sense of quiet lullaby-like repose.
Achieving a seamless legato melody over a wide-spanning accompaniment requires careful attention to thumb-weight distribution.
Comparable difficulty and character — good candidates for what to learn next.
Berceuse is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 Berceuse lasts about 4 minutes.
Berceuse 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 Halina Krzyżanowska, Berceuse d'été by Fernand-Raoul Robert, Blumenstück Op.19 by Robert Schumann — see the full similar-pieces list on this page.