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G♭ Minor 13th

Notes: G♭ – B♭♭ – D♭ – F♭ – A♭ – C♭ – E♭
Degrees: 1 – ♭3 – 5 – ♭7 – 9 – 11 – 13Also written: G♭m13, G♭min13Raise B♭♭ to B♭ and it is G♭13; lower D♭ to D♭♭ and it is G♭m13♭5. G♭, A♭, C♭, E♭ and F♭ do not move.

The G♭ Minor 13th chord is a seven-note chord made up of G♭, B♭♭, D♭, F♭, A♭, C♭, and E♭.

G♭ Minor 13th chord: G♭, B♭♭, D♭, F♭, A♭, C♭, E♭

It is built from a root, minor third, perfect fifth, minor seventh, major ninth, perfect eleventh, and major thirteenth.

A minor 11th plus the 13th: rich and chromatic, common in modal jazz comping.

F♯ Minor 13th
This is the same chord as F♯ Minor 13th: the same keys on the keyboard, spelled with sharps.

Construction

G♭ Minor 13th = Root + Minor 3rd + Perfect 5th + Minor 7th + Major 2nd + Perfect 4th + Major 6th = G♭, B♭♭, D♭, F♭, A♭, C♭, E♭
NoteIntervalDegree
G♭Root1
B♭♭Minor 3rd♭3
D♭Perfect 5th5
F♭Minor 7th♭7
A♭Major 2nd9
C♭Perfect 4th11
E♭Major 6th13

Same Notes, Other Names

The notes G♭ – B♭♭ – D♭ – F♭ – A♭ – C♭ – E♭ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell the following:

G♭ Minor 13th : Frequently Asked Questions

What is the G♭ Minor 13th chord on piano?
The G♭ Minor 13th chord contains the notes G♭ – B♭♭ – D♭ – F♭ – A♭ – C♭ – E♭. On piano, play these notes together to sound the chord.
What notes are in the Gb Minor 13th chord?
Practical voicing: Gb–Bbb–Fb–Ab–Eb. Enharmonic equivalent of F#m13.
How does Gbm13 differ from Gb13?
Gbm13 has minor third. Gb13 has major third.
How is Gbm13 used in music?
Enharmonic of F#m13, the ii in E Major.
How does Gbm13 differ from Gbm11?
Adds the thirteenth for brightness.
What songs use Minor 13th chords?
Modal jazz, neo-soul.
Do I need to play all seven notes?
No: use practical voicing.

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