Koval’s programmatic work captures the ominous folklore of the Baba Yaga character. It is characterized by harsh accents and sudden shifts in dynamic texture.
Practice the sudden, large chord changes to ensure accuracy at high speeds.
Comparable difficulty and character — good candidates for what to learn next.
At Baba Yaga is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
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 At Baba Yaga lasts about 4 minutes.
At Baba Yaga 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 Piano Sonata No. 17 'Tempest', No. 2 by Ludwig van Beethoven, Allegro de concert by Aleksandr Scriabin, 'The King of the Jews' - Incidental Music by Alexander Glazunov — see the full similar-pieces list on this page.