Originally part of the 'Suite española', this piece is a cornerstone of Spanish Impressionism that evokes the spirit of the Moorish past and the Andalusian landscape. It is defined by its repetitive, hypnotic arpeggios that mimic the strumming of a flamenco guitar.
The technical core involves controlling the evenness of the rapid, sweeping arpeggios while maintaining a singing melody in the thumb.
Comparable difficulty and character — good candidates for what to learn next.
Asturias (Leyenda) is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 10.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 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 Asturias (Leyenda) lasts about 6 minutes.
Asturias (Leyenda) 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 Berceuse élégiaque, BV 252a by Ferruccio Busoni, Piano Sonata No. 4 in F-sharp major by Aleksandr Scriabin, "Esquisses hebraiques" by Alexander Abramovich Krein — see the full similar-pieces list on this page.