Johann Baptist Cramer's 3 Piano Sonatas, Letter A, are characteristic of the Classical period, balancing clear structures with graceful melodies.
Focus on precise articulation and maintaining a consistent, even texture throughout the Alberti bass.
3 Piano Sonatas, Letter A is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
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 3 Piano Sonatas, Letter A lasts about 12 minutes.
3 Piano Sonatas, Letter A is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.