Erklärung (Explanation) is a late-Romantic expressive piece by Dutch composer Richard Hol. It utilizes dense, expressive harmonies to convey a sense of introspective narrative.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: a true singing tone, with the melody floating above the accompaniment; rubato that must breathe naturally without losing the pulse; and careful pedaling — clarity depends on the foot as much as the fingers.
Beyond that, expect chord voicing — bringing out one note inside a handful of others.
The performer must navigate complex internal voicing to ensure the melodic structure remains clear throughout.
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.
Erklärung (Op.51) 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 Erklärung (Op.51) lasts about 4 minutes.
Erklärung (Op.51) 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 Albumblatt für Clara Schumann by Johannes Brahms, Albumblad, EG 109 by Edvard Grieg, Crépuscule by Jules Massenet — see the full similar-pieces list on this page.