This iteration of the work focuses on an essentialist interpretation of the peace theme without the Opus indicator. It is highly distinctive for its atmospheric soundscape and rigorous, intellectual approach to dissonance.
Managing the pedal effectively to maintain the atmospheric quality without losing clarity is critical.
Comparable difficulty and character — good candidates for what to learn next.
(Ver)suche Frieden... is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 9.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 (Ver)suche Frieden... lasts about 5 minutes.
(Ver)suche Frieden... 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 (Ver)suche Frieden... by C. René Hirschfeld, La cathédrale engloutie by Claude Debussy, Canope by Claude Debussy — see the full similar-pieces list on this page.