Schubert's Original Dances, often referred to as Waltzes, are delightful miniatures that capture the spirit of Viennese social dancing. They exhibit his characteristic melodic gift and harmonic inventiveness.
Developing a light touch and crisp articulation for the waltz rhythm is a primary technical goal.
36 Original Dances (First Waltzes)(Op.9) (D.365) is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 3.
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 36 Original Dances (First Waltzes)(Op.9) (D.365) lasts about 10 minutes.
36 Original Dances (First Waltzes)(Op.9) (D.365) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.