# A FLAT DORIAN MODE

‘A flat dorian’ is the 2nd mode of the Gb major scale. The notes in Ab dorian are:

Ab – Bb – Cb – Db – Eb – F – Gb

If you have read the post on understanding the dorian mode, you will know that the dorian mode contains a flat 3 and a flat 7 (parallel approach). You will also know that it is the 2nd mode of a major scale (derivative approach). Let’s briefly look at how to construct Ab dorian using both the parallel approach and the derivative approach.

## Parallel Approach:

Ab major has the following notes:
Ab – Bb – C – Db – Eb – F – G

If we flatten the 3rd note (C) and the 7th note (G) we get the following:
Ab – Bb – Cb – Db – Eb – F – Gb

## Derivative Approach:

Ab is the 2nd note of the Gb major scale:
Gb – Ab – Bb – Cb – Db – Eb – F

If we play a Gb major scale and start on the 2nd note we get the following:

Ab – Bb – Cb – Db – Eb – F – Gb
Let’s look at the Ab dorian mode in the different positions on the guitar fretboard:

## Positions Along the Fretboard:

Firstly, let’s look at the open position:

Now let’s look at Ab dorian in the 1st position (lowest fret is 1)

Now let’s look at Ab dorian in the 2nd position (lowest fret is 2)

Now let’s look at Ab dorian in the 6th position (lowest fret is 6)

Now let’s look at Ab dorian in the 7th position (lowest fret is 7)

Finally, let’s look at Ab dorian in the 10th position (lowest fret is 10)

That covers the 5 basic positions and the open position of Ab dorian along the guitar fretboard.

For an in depth explanation of the dorian mode, check out dorian mode explained.

Other useful or related posts:

Gb Major Scale Positions On The Fretboard

Ab Major Scale Positions On The Fretboard