Scriabin's Prelude Op. 33 No. 1 is a passionately lyrical piece, showcasing his unique harmonic language and melodic invention. It is distinctive for its flowing figuration and expressive intensity.
Mastering the seamless flow of the sixteenth-note figures while maintaining a rich, singing melodic line is crucial.
4 Preludes (Op.33) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 7.
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 4 Preludes (Op.33) lasts about 4 minutes.
4 Preludes (Op.33) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.