This early keyboard work by Bach, likely intended for the clavichord or harpsichord, presents a thoughtful exploration of a simple theme through a series of variations. Its contrapuntal textures and subtle harmonic shifts are characteristic of Bach's genius.
Focus on clarity of melodic lines in each voice and precise articulation.
Air with Variations in C minor (BWV 991) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Air with Variations in C minor (BWV 991) lasts about 5 minutes.
Air with Variations in C minor (BWV 991) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.