Jadwiga Sarnecka was a Polish composer whose late Romantic style is heavily influenced by the drama of her contemporaries. This work is characterized by dark, chromatic harmonies and a somber, brooding narrative arc.
Mastering the dense chordal textures requires careful control of tone weight and vertical alignment.
Comparable difficulty and character — good candidates for what to learn next.
Ballade No.1 (Op.6) is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 9.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 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 Ballade No.1 (Op.6) lasts about 8 minutes.
Ballade No.1 (Op.6) 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 No.1 by Jadwiga Sarnecka, Asturias (Leyenda) by Isaac Albéniz, Ballade No.1 by Frederic Chopin — see the full similar-pieces list on this page.