Arnold Kroegel's 'Erinnerung' is a character piece that explores the somber possibilities of the minor key. It uses heavy chords and wide-ranging dynamics to create a narrative, intense atmosphere.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: sharp dynamic and character contrasts held together in one arc; a true singing tone, with the melody floating above the accompaniment; and rubato that must breathe naturally without losing the pulse.
Balance the dense chordal texture so the melody remains distinct and expressive.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Erinnerung is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 7.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 Erinnerung lasts about 4 minutes.
Erinnerung 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 Fantasy in D minor by Wolfgang Amadeus Mozart, Canon by Sergei Rachmaninoff, Elegie by Franz Liszt — see the full similar-pieces list on this page.