G13 guitar chord
Root, third and seventh: the guide tones fix the quality, so the fifth is dropped. That is what leaves a string free, so pick a tension to put on top.
- Tap a note to hear it
- Arrows change position
- Fingers, notes or intervals
- Play the chord
About G13 — shell voicings
G13 is G, B, D, F, A and E — G9 with the thirteenth added on top.
It sounds big and open. Six notes will not fit under four fingers: the fifth goes first, then the ninth, and the third, flat seventh and thirteenth stay.
G13 notes and formula
| G | B | D | F | A | E |
|---|---|---|---|---|---|
| 1 | 3 | 5 | ♭7 | 9 | 13 |
Dominant — the full V chord.
Also written Gdom13 or G dominant 13. The same chord either way; which spelling you meet depends on who wrote the chart.
How to play G13
Root, third and seventh. The third and seventh, the guide tones, are what make the chord major, minor or dominant, so the fifth can go: it says nothing the symbol needs.
Three notes means a spare string, which is the real point. Put a tension on it.
G13 has 2 of them, on strings 6-4-3-2 and strings 5-3-2-1, from the 3rd fret up to the 10th — all in one inversion, so the bass note never moves. The one to learn first is the G shape at the 3rd fret.
Start with 302001 — no barre and 3 open strings. 1 of the 8 shapes here sits in open position. 6 of the 8 need a barre. Together they cover the neck from the 1st fret to the 15th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 302001 | open position | G, root position | F | 3 open strings |
| 322231 | 1st fret | G, root position | F | barred |
| 333455 | 3rd fret | G, root position | A | barred |
| 353453 | 3rd fret | G, root position | G | barred |
| x-10-9-10-10-12 | 9th fret | G, root position | E | barred |
| x-10-9-10-12-12 | 9th fret | G, root position | E | all fretted |
| 10-10-10-10-12-12 | 10th fret | D, 2nd inversion | E | barred |
| 15-12-14-12-12-13 | 12th fret | G, root position | F | barred |
The same notes rebuilt from scratch give 14 drop 2, 9 drop 3, 24 rootless and 6 open string voicings, each on its own page.
Tensions. A shell of G13, root, third and seventh, leaves a string free, and the tones that belong over it are the #11 (C#).
How to use G13
G13 is the V of C, and that is where it goes if it goes anywhere: the third and the flat seventh are a tritone apart, and both resolve by a semitone into C.
Voice by voice, G13 → C. 2 voices move by a semitone, and 2 notes are common to both chords.
| In G13 | Moves | In C |
|---|---|---|
| G, the root | stays where it is | G, the fifth |
| B, the major third | rises a semitone | C, the root |
| D, the fifth | falls a whole tone | C, the root |
| F, the flat seventh | falls a semitone | E, the major third |
| A, the ninth | falls a whole tone | G, the fifth |
| E, the thirteenth | stays where it is | E, the major third |
In which keys. Every note of G13 belongs to C major (the V, the dominant) and A minor (the ♭VII).
What to play over G13
Every note of G13 is in G mixolydian and G lydian dominant.
Chords near G13
Change one note of G13 and you have Gmaj13 (the flat seventh becomes a major seventh), G69 (drop the flat seventh), G9 (drop the sixth) or G9#11 (the sixth becomes a flat fifth).
G13 is a dominant chord — root, major third, fifth, minor seventh. Dominant seventh chords on every root.
On G13’s sound and use this page follows Ted Pease & Ken Pullig, Modern Jazz Voicings (Berklee Press, 2001). The shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.