Sometimes keeping things simple works. This Bach chorale is a great example of how Bach keeps things simple and still manages to demonstrate his artistic genius. We examine the choice of harmony and modulation, the part writing, the use of inessential notes and suspensions, plus other features of the Bach Chorale style. Useful for anyone wanting to improve their ability to write harmony, to analyse harmony, or to understand the detail of Bach's style. Join us on this exciting journey to delve inside the mind of the great J. S. Bach.