This piece is a salon waltz by the renowned pianist-composer Xaver Scharwenka. It is characterized by its graceful, lyrical melodies and the sophisticated harmonic language typical of late-Romantic salon music.
Achieving a fluid, aristocratic rubato within the waltz rhythm is essential for this piece.
Comparable difficulty and character — good candidates for what to learn next.
Ballerinnerungen (Op.54) 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 Ballerinnerungen (Op.54) lasts about 4 minutes.
Ballerinnerungen (Op.54) 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 Bilder aus Ungarn by Xaver Scharwenka, Ballade by Xaver Scharwenka, Bergfahrt by Xaver Scharwenka — see the full similar-pieces list on this page.