Gm7b5 chord (G half-diminished seventh) on guitar
Gm7b5 (G half-diminished seventh) has four notes: G, B flat, D flat and F. Its formula is 1, b3, b5, b7. In major keys, Gm7b5 is the viiø7 chord in Ab major.
Gm7b5 chord shapes
Finger 1 barres fret 1, then 3 on E, 4 on D, 4 on G, 2 on B.
Fingers: 3 on E, 1 on A, 4 on D, 2 on B.
Finger 1 barres fret 3, then 2 on A, 4 on B.
Finger 1 barres fret 3, then 2 on A, 4 on B, 4 on e.
Fingers: 1 on D, 2 on G, 3 on B, 4 on e.
Finger 1 barres fret 8, then 3 on A, 4 on G, 2 on e.
Hear it and see every shape in ScaleSpace →
| Symbol | Gm7b5 |
|---|---|
| Also written | Gø, Gø7, Gmin7b5, G-7b5 |
| Notes | G Bb Db F |
| Formula | 1 b3 b5 b7 |
| Intervals | root, minor third, tritone, minor seventh |
| Type | Half-diminished seventh chord |
Gm7b5 across the neck
Guitar · 6-string, tuned low to high: E, A, D, G, B, e. 24 frets.
- E string: fret 1 F (flat 7), fret 3 G (1), fret 6 Bb (flat 3), fret 9 Db (flat 5), fret 13 F (flat 7), fret 15 G (1), fret 18 Bb (flat 3), fret 21 Db (flat 5).
- A string: fret 1 Bb (flat 3), fret 4 Db (flat 5), fret 8 F (flat 7), fret 10 G (1), fret 13 Bb (flat 3), fret 16 Db (flat 5), fret 20 F (flat 7), fret 22 G (1).
- D string: fret 3 F (flat 7), fret 5 G (1), fret 8 Bb (flat 3), fret 11 Db (flat 5), fret 15 F (flat 7), fret 17 G (1), fret 20 Bb (flat 3), fret 23 Db (flat 5).
- G string: fret 0 G (1), fret 3 Bb (flat 3), fret 6 Db (flat 5), fret 10 F (flat 7), fret 12 G (1), fret 15 Bb (flat 3), fret 18 Db (flat 5), fret 22 F (flat 7), fret 24 G (1).
- B string: fret 2 Db (flat 5), fret 6 F (flat 7), fret 8 G (1), fret 11 Bb (flat 3), fret 14 Db (flat 5), fret 18 F (flat 7), fret 20 G (1), fret 23 Bb (flat 3).
- e string: fret 1 F (flat 7), fret 3 G (1), fret 6 Bb (flat 3), fret 9 Db (flat 5), fret 13 F (flat 7), fret 15 G (1), fret 18 Bb (flat 3), fret 21 Db (flat 5).
Swipe the chart sideways to see all of it.
Questions
What notes are in the Gm7b5 chord?
Gm7b5 (G half-diminished seventh) has four notes: G, B flat, D flat and F. Its formula is 1, b3, b5, b7. G is the root, Bb is the minor third, Db is the tritone and F is the minor seventh.
How do you play Gm7b5 on guitar?
The easiest shape is 313321. Finger 1 barres fret 1, then 3 on E, 4 on D, 4 on G, 2 on B.
What key is Gm7b5 in?
In major keys, Gm7b5 is the viiø7 chord in Ab major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Gm7b5 and Gdim7?
Gm7b5 and Gdim7 share G, Bb and Db. Gm7b5 has F, the flat 7th, where Gdim7 has Fb, the double flat 7th.