A transcription and variation set based on the famous bolero theme from Verdi's opera. It retains the dramatic flair of the original vocal line while adapting it to the expressive capabilities of the piano.
The performer must apply vocal rubato to the long melodic lines to capture the operatic spirit.
Comparable difficulty and character — good candidates for what to learn next.
Boléro nei Vespri Siciliani di Verdi (Op.22) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 7.
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 Boléro nei Vespri Siciliani di Verdi (Op.22) lasts about 5 minutes.
Boléro nei Vespri Siciliani di Verdi (Op.22) 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 Barcarolle by Xaver Scharwenka, Ballade pour piano by Sydney Smith, Blumenklage by Gustav Lange — see the full similar-pieces list on this page.