Harmonic minor keys are used when writing chords. There is another version of the minor key known as the melodic minor. This is used when writing a melody. Each key signature has two possible keys.

However, the harmonic minor is better for playing over a perfect cadence, where chord V7 resolves to a minor ... the Major 7th in the key of A minor. Our A minor pentatonic and A natural minor ...

Let’s unpick why this harmonic sequence works so well. When working in a major key, chords or triads are based upon different ...