A lighthearted popular song arranged for piano, characteristic of early 20th-century character pieces. It relies on a balanced structure and clear rhythmic profile.
Precision in rhythm and note clarity is required throughout the performance.
Comparable difficulty and character — good candidates for what to learn next.
'Twas Only an Irishman's Dream is rated Henle level 2 of 9 — beginner repertoire, roughly ABRSM grades 2–3. In the RCM system it corresponds to about level 3.
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 'Twas Only an Irishman's Dream lasts about 3 minutes.
'Twas Only an Irishman's Dream 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 Bach-bwv-anh-114 by Johann Sebastian Bach, Bach-anh-114 by Johann Sebastian Bach, Blumenwalzer by Léon Jessel — see the full similar-pieces list on this page.