Johann Dubez explores the dramatic capacity of the piano through the lens of a virtuoso fantasy. It is distinguished by sudden dynamic shifts and heavy textures common in concert works of the period.
The main challenge is executing the large chordal passages with control and appropriate dramatic volume.
Comparable difficulty and character — good candidates for what to learn next.
Blütige Fantaisie No.8 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 Blütige Fantaisie No.8 lasts about 6 minutes.
Blütige Fantaisie No.8 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. 8 'Pathétique' by Ludwig van Beethoven, Balada mexicana by Manuel Ponce, Allegro Appassionato by Alexander Scriabin — see the full similar-pieces list on this page.