This orchestral work by Bach is a quintessential example of the concerto grosso form. Its complexity lies in the intricate interplay between solo instruments and the ripieno, often transcribed for piano to showcase Baroque textures.
Maintaining clear articulation and rhythmic pulse across complex polyphonic lines is the primary challenge.
Brandenburg Concerto No.1 (BWV 1046) is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 10.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 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.1 (BWV 1046) lasts about 20 minutes.
Brandenburg Concerto No.1 (BWV 1046) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.