This piece by Christian Sinding evokes the delicate, brittle sound of the harpsichord ('spinett') within a late-Romantic harmonic language. It demands high precision and clean, light articulation.
The ornamentation requires extreme finger independence and precision to sound authentic rather than muddy.
Comparable difficulty and character — good candidates for what to learn next.
Am spinett (Op.122) 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 Am spinett (Op.122) lasts about 4 minutes.
Am spinett (Op.122) 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 Waltz No. 2 by Dmitri Shostakovich, 16 Waltzes by Johannes Brahms, Waltz in C-sharp minor, No. 2 by Frédéric Chopin — see the full similar-pieces list on this page.