• Chris Caton-Greasley

Piano Level 7 Exercises for Bach Prelude in C BWV939

Before playing any piece it is good practice to play the scales and chords needed in the piece. If you do not know which ones are used and cannot work it out yet and good starting point will be


If the piece is in C major, as this one is, I would start with the following

  • The scale starting on the tonic or home key and the basic chord. (C major)

  • The scale of the fourth note (F major) and the chords of the first, fourth and fifth notes of that scale.

  • The scale of the fifth note ( G major) and the chords of the first, fourth and fifth notes of that scale.

Secondly I would play the related minor scales and chords

  • The minor scale on the sixth note (A minor) and the chords of the first, fourth and fifth notes of that scale.

  • The minor scale on the second note (D minor) and the chords of the first, fourth and fifth notes of that scale.

  • The minor scale on the third note (E minor) and the chords of the first, fourth and fifth notes of that scale.

Finally for added flexibility you can add each scale starting from the fourth and fifth note, whilst maintaining the finger pattern of the original scale.

This brings the mind into what harmonies are going to be used and what you can expect to hear.

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