Bach's Chorale Preludes are deeply spiritual and intricate settings of familiar hymn tunes, showcasing his mastery of counterpoint and harmonic invention. Each prelude offers a unique meditative interpretation of its chorale melody.
Achieving a deep understanding of the contrapuntal lines and conveying the devotional spirit through nuanced articulation and phrasing are crucial.
18 Chorale Preludes 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 18 Chorale Preludes lasts about 90 minutes.
18 Chorale Preludes is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.