This setting of Caecilia by the Belgian composer Lodewijk De Vocht reflects a post-romantic, contemplative style. Its distinctiveness lies in its dense chordal writing and emphasis on rich, static sonorities.
The main challenge is balancing the inner voices within the block chords to bring out the primary harmonic interest.
Comparable difficulty and character — good candidates for what to learn next.
Caecilia 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 Caecilia lasts about 3 minutes.
Caecilia 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 Gymnopédie No. 1 by Erik Satie, Gnossienne No. 1 by Erik Satie, Ave Maria (Die Glocken von Rom) by Franz Liszt — see the full similar-pieces list on this page.