This piece is the piano adaptation of Giuliani's popular variations. It maintains the charm of the original while utilizing standard Classical piano textures.
Pay close attention to maintaining a consistent tempo across the diverse rhythmic figurations of the variations.
Comparable difficulty and character — good candidates for what to learn next.
12 Variations faciles sur une Air nationale Autrichien is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 12 Variations faciles sur une Air nationale Autrichien lasts about 5 minutes.
12 Variations faciles sur une Air nationale Autrichien 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 12 Variations faciles sur une Air nationale Autrichien by Mauro Giuliani, 12 Variations on an Austrian Air by Mauro Giuliani, The Entertainer by Scott Joplin — see the full similar-pieces list on this page.