This piece uses a Lydian mode context to challenge the performer's familiarity with common scale patterns. It is musically distinctive for its bright, floating tonal character.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: precise articulation — the difference between crisp and blurred is the piece; fine finger independence within the hand; and chord voicing — bringing out one note inside a handful of others.
The technical difficulty lies in maintaining a consistent tone while adhering to specific, non-diatonic articulation patterns.
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.
Experimentelle Übung Lydian C-Dur 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 Experimentelle Übung Lydian C-Dur lasts about 4 minutes.
Experimentelle Übung Lydian C-Dur 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 Experimentelle Übung by Amedéo Bérézet, 13 Variations on 'Es war einmal ein alter Mann' by Ludwig van Beethoven, Diatonic Study by Cyril Scott — see the full similar-pieces list on this page.