The second Brandenburg Concerto is celebrated for its virtuosic demands and high-lying trumpet part, which is notoriously difficult to translate to the keyboard. It represents the pinnacle of Bach's contrapuntal mastery in a secular concerto setting.
The performer must navigate rapid, tight-knit imitation while maintaining a precise and light touch.
Brandenburg Concerto No.2 (BWV 1047) is rated Henle level 8 of 9 — concert repertoire, roughly diploma level. In the RCM system it corresponds to about level 10.
You should be comfortable at Henle level 8 — meaning you can already play level 7–8 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 Brandenburg Concerto No.2 (BWV 1047) lasts about 12 minutes.
Brandenburg Concerto No.2 (BWV 1047) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.