Levin's Op. 17 'Ali' is a modern character piece that experiments with shifting harmonies and rhythmic tension. It offers a sophisticated texture that moves between dissonant pulses and sudden lyrical outbursts.
Master the rhythmic stability of the underlying pulse while layering the melodic phrasing on top with independent voicing.
Comparable difficulty and character — good candidates for what to learn next.
Ali (Op.17) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 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 Ali (Op.17) lasts about 3 minutes.
Ali (Op.17) 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 'The King of the Jews' - Incidental Music by Alexander Glazunov, Bal Masqué by Kees Schoonenbeek, An Allegory by Leo Ornstein — see the full similar-pieces list on this page.