This piece from the Lyric Pieces captures a grotesque and whimsical atmosphere typical of Grieg's fascination with Norwegian folklore. It is distinctive for its alternating sections of heavy, rhythmic stamping and delicate, fleeting figurations.
The primary challenge is maintaining sharp, characterful articulation in the contrasting sections while managing large chordal shifts.
Comparable difficulty and character — good candidates for what to learn next.
March of the Trolls, No. 3 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 March of the Trolls, No. 3 lasts about 3 minutes.
March of the Trolls, No. 3 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 Ballade by Edvard Grieg, Wedding Day at Troldhaugen, No. 6 by Edvard Grieg, 12 Variations on "Ah vous dirais-je, Maman" by Wolfgang Amadeus Mozart — see the full similar-pieces list on this page.