Schubert's D.983 is a set of four Ländler or German dances, intended for male voices but often performed instrumentally. These pieces are characterized by their charming melodies and rhythmic vitality.
Maintaining rhythmic clarity and a light touch for the dance-like character is important.
4 Gesänge für vier Männerstimmen(Op.17) (D.983) 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.
4 Gesänge für vier Männerstimmen(Op.17) (D.983) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.