Hidayat Inayat Khan's work reflects a more meditative and exotic approach to the piano, diverging from standard Western classical forms. Its distinctiveness lies in its atmospheric soundscapes and focus on texture over traditional functional harmony.
The performer must master the art of layering sound to create the requisite mysterious atmosphere.
Comparable difficulty and character — good candidates for what to learn next.
Ballet rituel (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 7.
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 Ballet rituel (Op.17) lasts about 3 minutes.
Ballet rituel (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 Gymnopédie No. 1 by Erik Satie, La cathédrale engloutie by Claude Debussy, Gymnopédie No. 3 by Erik Satie — see the full similar-pieces list on this page.