G flat 13 Guitar Chord | Play, Hear and Practice Interactively
Gb13, the Gb dominant thirteenth chord, is spelled Gb, Bb, Db, Fb, Ab, Cb and Eb. It is the same sound as F#13, and the Fb and Cb are theoretical spellings of E and B.
Five voicings are listed, four of them barres, none with an open string, the lowest at the 2nd fret. Charts usually print the F# name to avoid those two flats. The Eb is the thirteenth, a major sixth above the root. The Gb Mixolydian scale contains all seven chord tones.
Hear every shape strummed and as an arpeggio in the player above.
Gb dominant 13th guitar chord is also written as Gb13, Gbdom13 or Gb7(13).
Notes in the Gb 13 chord:
Chord structure of the Dominant Thirteen chord:
Formula: 1 3 5 b7 9 11 13
Gb 13 Chord Interactive Fretboard
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Gb 13 Guitar Chord Diagrams
Position 1 Barre Movable
Finger Positions
- Mute the A string
- Place your index finger (1) on the fret 2 of the low E and D strings at the same time
- Place your middle finger (2) on the fret 3 of the G string
- Place your ring finger (3) on the fret 4 of the B string
- Place your pinky finger (4) on the fret 4 of the high E string
Position 2 Barre Movable
Finger Positions
- Mute the low E string
- Place your index finger (1) on the fret 8 of the D string
- Place your middle finger (2) on the fret 9 of the A string
- Place your ring finger (3) on the fret 9 of the G and B strings at the same time
- Place your pinky finger (4) on the fret 11 of the high E string
Position 3 Barre Movable
Finger Positions
- Mute the low E string
- Place your index finger (1) on the fret 9 of the A, G and B strings at the same time
- Place your ring finger (3) on the fret 11 of the D string
- Place your pinky finger (4) on the fret 11 of the high E string
Position 4 Movable
Finger Positions
- Mute the A string
- Mute the high E string
- Place your index finger (1) on the fret 2 of the low E string
- Place your middle finger (2) on the fret 2 of the D string
- Place your ring finger (3) on the fret 3 of the G string
- Place your pinky finger (4) on the fret 4 of the B string
Position 5 Barre Movable
Finger Positions
- Mute the low E string
- Mute the A string
- Place your index finger (1) on the fret 8 of the D string
- Place your ring finger (3) on the fret 9 of the G and B strings at the same time
- Place your pinky finger (4) on the fret 11 of the high E string
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
What notes make up Gb dominant thirteenth?
Gb13 is Gb, Bb, Db, Fb, Ab, Cb and Eb. The Fb is the minor seventh, the Cb the eleventh and the Eb the thirteenth.
Is Gb13 the same as F#13?
Yes. F#13 spells the same pitches as F#, A#, C#, E, G#, B and D#. Gb13 writes the E as Fb and the B as Cb.
Why does Gb13 use Fb and Cb?
The letters stack G, B, D, F, A, C, E. The seventh and the eleventh are each a semitone lower than the natural F and C, so they become Fb and Cb.
How many voicings does Gb13 have?
There are 5 voicings, from fret 2 to fret 11. Four are barre voicings and none uses an open string.
Which scale goes with Gb13?
Gb Mixolydian is Gb, Ab, Bb, Cb, Db, Eb and Fb. It holds all seven chord notes, so the scale and chord line up.
