This is a forgotten 19th-century salon piece by American composer Robert Goldbeck. It is distinctive for its typical Victorian-era sentimentality and simple, melodic charm.
Focus on maintaining a seamless, singing melody over a supportive chordal accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
Autumn Song is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 Autumn Song lasts about 3 minutes.
Autumn Song 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 by Rudolf Friml, 'O marenariello by Salvatore Gambardella, Butterfly by Walter Niemann — see the full similar-pieces list on this page.