Minor b6 (mb6), minor b13 (mb13) Chords, minor 7 add b13 (m7add13) - Diagrams and Charts

What Are Minor b6 Chords?

A minor flat sixth chord (mb6) is built with four notes, root (1), minor third (b3), perfect fifth (5) and flatted sixth (b6). This is a minor triad with a b6 (a minor 6 interval from the root). Minor b6 chords are rarely identified as such, they are not common chords. Almost every time, mb6 chords have enharmonic equivalents that make more sense in the harmony. For example, Fmaj7/A (most often found in real books and fake books) could be seen as an inversion of Amb6 (check out the diagrams below).

6th Chords Comparison

Here is a quick comparison between sixht chords.

minor 6 Chords 1 b3 5 6
6 chords 1 3 5 6
minor b6 chords 1 b3 5 b6

Notation and Symbols

Minor b6 chords can be written mb6 or minorb6 or minb6 or -b6

Related Scales

You 'll find mb6 chords in the three following scales and modes :

Related Chord Shapes

The six diagrams below show that minor b6 chords can be considered as maj7 chords with the third in the bass.

Minor b6 guitar chords


Major 7 chords third in the bass

Difference With minb13 and min7addb13 Chords

Minor b13 chords are tetrad chords (aka 7th chords) including two extra notes the ninth (9) and the eleventh (11) with an altered one that is b13. They are spelled (1 - b3 - 5 - b7 - 9 - 11 - b13). This means that theoretically b13 chords does automatically include the 7th, the 9th and the eleventh. Because it is physically difficult to play all these notes on the guitar, some of them are removed as shown below in the examples below. Please note that minor 7 add 13 chords are minor seventh chords (1-b3-5-b7) with an added flat thirteenth (b13). There is no 9th and no 11th.


minor b13 chords 1 b3 5 b7 9 11 b13
minor 7 add b13 1 b3 5 b7 X X b13


Minor b13 chords

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Last edited: 12/24/2018