Major 7th chords are great for jazz progressions. They have a more complex sound than a standard major chord. The chord is based on a standard major chord with the 7th note of the scale added. This ...

When you use a scale, say, C major, you are playing ‘in the key of C’. The word ‘diatonic’ simply means ‘within a key’, so a diatonic chord progression is a set of chords made up of notes from within ...