A contemporary arrangement of the famous Lakmé duet by Delibes, adapted for solo piano. It transforms the original vocal lines into a rich, impressionistic keyboard texture.
The primary challenge is maintaining a sustained cantabile line above a complex, layered accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
Capriccio after 'Flower Duet' from 'Lakmé' is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 9.
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 Capriccio after 'Flower Duet' from 'Lakmé' lasts about 5 minutes.
Capriccio after 'Flower Duet' from 'Lakmé' 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 Capriccio after «Flower Duet from Lakmé» by L. Delibes by Alexander Sokolov, 'Ornaments' by Alexander Sokolov, Un sospiro by Franz Liszt — see the full similar-pieces list on this page.