Döhler was a contemporary of Thalberg, and his piano writing is heavily influenced by the 'bel canto' operatic style of Bellini. This piece acts as a transcription or adaptation that captures the vocal soul of Bellini's melodies within a pianistic framework.
At Henle 6 this is an advanced piece that assumes fluent technique and rewards mature interpretation. The main demands: ornaments that need to sound effortless, not squeezed in; a true singing tone, with the melody floating above the accompaniment; and rubato that must breathe naturally without losing the pulse.
Beyond that, expect chord voicing — bringing out one note inside a handful of others.
Developing the ornamentation to sound natural and vocal rather than mechanical is essential for this piece.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Dernière pensée musicale de Bellini (Op.15) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 7.
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 Dernière pensée musicale de Bellini (Op.15) lasts about 6 minutes.
Dernière pensée musicale de Bellini (Op.15) 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 Theodor Döhler, Nocturne in C-sharp minor by Frédéric Chopin, 16 Waltzes by Johannes Brahms — see the full similar-pieces list on this page.