This is a sentimental Neapolitan-style composition by Di Capua, typically performed as a parlor piano transcription. It is distinctive for its lingering, vocal-like melodic lines that characterize the late 19th-century Italian song tradition.
The primary challenge is maintaining a fluid, singing tone in the right hand while managing the accompaniment's waltz-rhythm.
Comparable difficulty and character — good candidates for what to learn next.
'A luntananza is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 'A luntananza lasts about 3 minutes.
'A luntananza 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 'E tiempe! by Eduardo Di Capua, 'O sentimento by Eduardo Di Capua, 'O sole mio by Eduardo Di Capua — see the full similar-pieces list on this page.