A memorial work from the Argentine Romantic school featuring a deeply emotive, lyrical melody. It is distinctive for its sighing motifs and tender harmonic language.
Mastering the control of rubato is essential to convey the mournful, nostalgic character.
Comparable difficulty and character — good candidates for what to learn next.
"A la memoria de Sara Irigoyen" is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
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 "A la memoria de Sara Irigoyen" lasts about 4 minutes.
"A la memoria de Sara Irigoyen" 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 Nocturne in C-sharp minor by Frédéric Chopin, Pavane pour une infante défunte by Maurice Ravel, Waltz in C-sharp minor, No. 2 by Frédéric Chopin — see the full similar-pieces list on this page.