Circle IV is an atmospheric piece that utilizes contemporary tonal colors and refined rhythmic textures. It demonstrates the composer's focus on cyclical motifs that evolve through shifting tonalities.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: chord voicing — bringing out one note inside a handful of others; careful pedaling — clarity depends on the foot as much as the fingers; and precise articulation — the difference between crisp and blurred is the piece.
Achieving clarity in the articulation while managing complex pedal changes is essential for the piece's mysterious atmosphere.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Lesser-known works by the same hand, at a comparable level.
Circle IX is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 Circle IX lasts about 4 minutes.
Circle IX 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 Bal Masqué by Kees Schoonenbeek, 1st Sonatina by Kees Schoonenbeek, Circle X by Kees Schoonenbeek — see the full similar-pieces list on this page.