This iconic piece, commonly known as 'Air on the G String,' is a sublime arrangement of a movement from Bach's Orchestral Suite No. 3. Its sustained, flowing melody over a gentle bass line creates an atmosphere of profound peace.
Focus on achieving a beautifully legato and sustained melodic line, with careful control of dynamics and pedaling.
Air on The G String is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 7.
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 Air on The G String lasts about 4 minutes.
Air on The G String is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.