Mauro Giuliani, primarily a guitarist, brings idiomatic string-like scalar passages to this piano variation set. The piece is distinguished by its frequent use of brilliant, virtuosic figuration.
Ensure clean execution of the rapid scalar runs and arpeggiated figures.
Comparable difficulty and character — good candidates for what to learn next.
12 Variations on an Austrian Air (Op.47) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 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 on an Austrian Air (Op.47) lasts about 9 minutes.
12 Variations on an Austrian Air (Op.47) 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 faciles sur une Air nationale Autrichien by Mauro Giuliani, Alexander's Ragtime Band by Irving Berlin — see the full similar-pieces list on this page.