These settings of chorale preludes by Bach, often based on specific manuscript versions, showcase his profound understanding of counterpoint and harmonic color. They offer intimate and deeply spiritual interpretations of familiar melodies.
The focus should be on bringing out the distinct voices in the contrapuntal texture with sensitive articulation.
3 Chorale Preludes (Hart) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 3 Chorale Preludes (Hart) lasts about 10 minutes.
3 Chorale Preludes (Hart) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.