Juan Alais was a prominent figure in Argentine guitar and piano music, and this piece incorporates the character of South American folk dance into a formal European structure. It is distinct for its rhythmic vitality and shifting emotional colors.
Coordination between the brisk left-hand rhythmic patterns and the right-hand melodic flourishes is the main technical task.
Comparable difficulty and character — good candidates for what to learn next.
Arturo is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 4.
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 Arturo lasts about 3 minutes.
Arturo 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 Angelita by Juan Alais, Blue Tango by Leroy Anderson, Sarabande by George Frideric Handel — see the full similar-pieces list on this page.