This piece is a characteristic 19th-century parlor song arranged for solo piano. It is distinctive for its simple, strophic melodic structure that prioritizes sentimental expression over complex pianistic development.
The primary challenge is maintaining a singing, lyrical melody line above a steady, unobtrusive accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
'Till the End O' the World with You is rated Henle level 2 of 9 — beginner repertoire, roughly ABRSM grades 2–3. In the RCM system it corresponds to about level 2.
You should be comfortable at Henle level 2 — meaning you can already play level 1–2 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 'Till the End O' the World with You lasts about 3 minutes.
'Till the End O' the World with You 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 Braziliana by Harold Dixon, 'O sole mio by Eduardo Di Capua, Believe Me, If All those Endearing Young Charms by Irish Folk Music — see the full similar-pieces list on this page.