Simpson's Berceuse is a contemporary take on the lullaby form, utilizing modern harmonic colors. It retains the traditional rocking motion while exploring more nuanced tonal palettes.
Pay close attention to the pedaling to ensure the modern harmonies remain clear rather than muddy.
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 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 Berceuse lasts about 3 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 Befiehl du deine Wege in A minor by Daniel Léo Simpson, Befiehl du deine Wege in B minor by Daniel Léo Simpson, Boulevard Blues by Daniel Léo Simpson — see the full similar-pieces list on this page.