Minor Harmony Recap
In this lesson we explore the 3 different minor scales and how and why they are used in jazz harmony, and jazz improvisation. “In A Sentimental Mood” is written in the key of D Minor and the tune modules to the key of Db Major for the bridge, or the B Section.
We will start by exploring the key of D minor, the different minor scales, and the common progressions that we can build in minor keys.
The 3 Minor Scales
Whilst we just have one major scale, there are 3 types of minor scale: the natural minor scale, the harmonic minor scale, and the melodic minor scale. Let’s talk about these 3 scales in the key of D.
We start with the natural minor scale which is also known as the relative minor scale. It has this name because it shares the exact same notes as its relative major scale which starts a minor 3rd above.
Now it’s the other 2 minor scales – the melodic minor and the harmonic minor – which are essential for creating harmonies and improvised melodies in minor keys.
Harmonic Minor Diatonic 7th Chords
We explore the diatonic 7th chords of the D harmonic minor scale. We start with the root in our left hand and the 7th chords in root position in our right hand, and then introduce 2 handed spread voicings.
Now that we have identified the diatonic 7th chords we can build the minor 251 progression. The 2 chord is E-7b5, the 5 chord is A7 usually with a b9, and the 1 chord is D-maj7.
In lesson 2 of our introduction module we will explore the modulation to Db in the bridge and also the harmonic frame work of the B Section.