Anzoletti was a violin virtuoso whose piano works often mirror idiomatic string lyricism. This bolero is notable for its mournful, expansive melodic lines set against a persistent triplet accompaniment.
Control of the balance between the intense, lyrical melody and the steady rhythmic foundation is essential.
Comparable difficulty and character — good candidates for what to learn next.
Bolero No.2 in A minor is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 Bolero No.2 in A minor lasts about 5 minutes.
Bolero No.2 in A minor 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 Cammino Funebre No.5 in F minor by Marco Anzoletti, Cammino Funebre No.4 in B-flat minor by Marco Anzoletti, Cammino Funebre No.3 in E-flat minor by Marco Anzoletti — see the full similar-pieces list on this page.