This is an anonymous Baroque manuscript piece, likely intended for study or as a functional service prelude. It demonstrates typical period counterpoint in a minor key.
Ensure the voices are distinct and balanced to clearly communicate the contrapuntal lines.
Comparable difficulty and character — good candidates for what to learn next.
Allabreve in C minor, D-LEb Go.S.104/8 is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 5.
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 Allabreve in C minor, D-LEb Go.S.104/8 lasts about 2 minutes.
Allabreve in C minor, D-LEb Go.S.104/8 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 Barafostus Dreame by Anonymous, Allemanda, FVB 274 by Anonymous, 'Tis Sweet to Muse o'er Memory's Page by Anonymous — see the full similar-pieces list on this page.