This opus 8 work explores more complex harmonic language than its related namesake works. It is distinctive for its melancholic mood and expanded phrase structure.
Use controlled pedaling to create a wash of sound without blurring harmonies.
Comparable difficulty and character — good candidates for what to learn next.
Boon Op.8 is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 4.
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 Boon Op.8 lasts about 4 minutes.
Boon Op.8 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 'Piano Suite' from 'A Folk Tale' by Jones-Stubbs, At The Waters Edge by Jones-Stubbs, 1st Sorrow Prayer by Jones-Stubbs — see the full similar-pieces list on this page.