Cui, a member of 'The Five', displays his lyrical Russian-Romantic style in this reflective miniature. The piece is characterized by its soulful, sighing chromaticism and restrained emotional intensity.
The main challenge is balancing the singing inner voice within the chordal textures.
Comparable difficulty and character — good candidates for what to learn next.
Angelo is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 6.
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 Angelo lasts about 3 minutes.
Angelo 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 ''Slava'' on Guard by César Cui, Bolero by César Cui, Berceuse héroïque by Claude Debussy — see the full similar-pieces list on this page.