This etude is a study in precision and articulation, characterized by its rapid, jagged melodic lines and sudden dynamic shifts. Its dark, restless character demands a high level of control and rhythmic intent.
Executing the rapid, chromatic passagework with absolute clarity and even finger touch is the main technical hurdle.
Comparable difficulty and character — good candidates for what to learn next.
Étude in C-sharp minor, No. 4 is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 9.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 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 Étude in C-sharp minor, No. 4 lasts about 2 minutes.
Étude in C-sharp minor, No. 4 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 Ballade No.1 by Frédéric Chopin, Ballade No.2 by Frédéric Chopin, Ballade No.4 by Frédéric Chopin — see the full similar-pieces list on this page.