About the G flat minor thirteen chord
G flat minor thirteen is used in E Major, where every note it holds is a scale tone. Think of it as a G♭ minor thirteenth chord.
Its notes are G♭, A, D♭, F♭, A♭, C♭, and E♭. The intervals are a minor third, a perfect fifth, a minor seventh, a major ninth, a perfect eleventh, and a major thirteenth.
Also called -13 and min13. F sharp minor thirteen spells the same notes enharmonically.
Inversions
G flat minor thirteen (root position)
Notes and intervals
| 1 | GbG♭ | Root |
|---|---|---|
| 2 | AA | Minor 3rd |
| 3 | DbD♭ | Perfect 5th |
| 4 | FbF♭ | Minor 7th |
| 5 | AbA♭ | Major 9th |
| 6 | CbC♭ | Perfect 11th |
| 7 | EbE♭ | Major 13th |
Shapes
Chromatic
Circle of Fifths
Other G flat chords
Simpler triads
Suspended
Sixths and sevenths
Extensions
Altered
Functional relationships
These chords are where this one most naturally comes from and resolves to inside a key.
Relative major
The relative major uses the same notes and key signature, so it works as a brighter home base.
Parallel major
The parallel major keeps the same root note but raises the third, giving the same key a brighter, happier sound.
Dominant
The dominant is a fifth above the root, and it builds tension that pulls strongly back to this chord.
Subdominant
The subdominant is a fourth above the root (a fifth below), and it usually leads on to the dominant or back home.
Tritone substitution
The tritone substitution stands in for this chord's dominant with a dominant seventh a half step above the root, which slides down by a half step to resolve here.
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