Johann Christoph Friedrich Bach's '6 Easy Keyboard Sonatas' are charming pieces from the Classical era. They showcase clear formal structures and melodically pleasing lines, ideal for developing pianists.
Students should focus on clarity of voicing between the melody and accompaniment, and precise articulation.
6 Easy Keyboard Sonatas is rated Henle level 2 of 9 — beginner repertoire, roughly ABRSM grades 2–3. In the RCM system it corresponds to about level 2.
You should be comfortable at Henle level 2 — meaning you can already play level 1–2 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
6 Easy Keyboard Sonatas is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.