There are several minor scales used in Pop, Rock and Blues Music.
The most important ones are the Aeolian (or Natural) Minor and the Dorian Minor Scales.
Both these scales are – like the major scales – defines by a formula.

Because we’re not going to use this scale much in this book, we’ll race through them.

The formula for an Aeolian Minor scale is 2,1,2,2,1,2,2 frets up.

The G Aeolian Minor scale contains these notes:
G, A, Bb, C, D, Eb, F and G


The formula for an Dorian Minor scale is 2,1,2,2,2,1,2 frets up.

The G Dorian Minor scale contains these notes:
G, A, Bb, C, D, E, F and G

As the name suggests, these scales have a minor ring to it; they sounds sad.
This is because of the minor third interval (3 frets), the distance from the tonic G to the third note of the scale (Bb).

Note: If we call a chord or a scale ‘minor’, we’re ALWAYS referring to the THIRD of the chord or scale!
If we call an interval “flat”, it means it’s 1 fret back from the major version.
This is sometimes confused with the word ‘minor’.