Wolfgang Amadeus Mozart's '9 Variations on 'Lison dormait'' is an early work showcasing his nascent genius for thematic development and pianistic invention. These variations explore a range of moods and technical challenges with characteristic Classical clarity.
Focus on maintaining a light and clear touch, particularly in the faster variations, to preserve the charming and elegant character of the piece.
9 Variations on "Lison dormait" is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 4.
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 9 Variations on "Lison dormait" lasts about 15 minutes.
9 Variations on "Lison dormait" is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.