Based on Rossini's famous operatic aria, these variations showcase the virtuosity typical of early 19th-century guitar and piano transcription culture. It is distinctive for its rapid ornamental flourishes and developmental treatment of the theme.
The technical challenge lies in the rapid, fluid execution of the ornamental runs and arpeggiated figures.
Comparable difficulty and character — good candidates for what to learn next.
'Di tanti palpiti'-Cavatina Variations (Tancred) (Op.1) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 'Di tanti palpiti'-Cavatina Variations (Tancred) (Op.1) lasts about 8 minutes.
'Di tanti palpiti'-Cavatina Variations (Tancred) (Op.1) 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 'Di tanti palpiti' (Trancred) Variations by Michele Giuliani, Bataille by Louis Moreau Gottschalk, 'When Meteor Lights' with Variations by Ferdinand Ries — see the full similar-pieces list on this page.