Am7b5 chord (A half-diminished seventh) on guitar
Am7b5 (A half-diminished seventh) has four notes: A, C, E flat and G. Its formula is 1, b3, b5, b7. In major keys, Am7b5 is the viiø7 chord in Bb major.
Am7b5 chord shapes
Fingers: 1 on D, 2 on B, 3 on e.
Fingers: 1 on D, 3 on G, 2 on B, 4 on e.
Finger 1 barres fret 3, then 3 on E, 4 on D, 4 on G, 2 on B.
Fingers: 2 on D, 3 on G, 1 on B, 4 on e.
Fingers: 3 on D, 4 on G, 2 on B, 1 on e.
Finger 1 barres fret 5, then 2 on A, 4 on B.
Hear it and see every shape in ScaleSpace →
| Symbol | Am7b5 |
|---|---|
| Also written | Aø, Aø7, Amin7b5, A-7b5 |
| Notes | A C Eb G |
| Formula | 1 b3 b5 b7 |
| Intervals | root, minor third, tritone, minor seventh |
| Type | Half-diminished seventh chord |
Am7b5 across the neck
Guitar · 6-string, tuned low to high: E, A, D, G, B, e. 24 frets.
- E string: fret 3 G (flat 7), fret 5 A (1), fret 8 C (flat 3), fret 11 Eb (flat 5), fret 15 G (flat 7), fret 17 A (1), fret 20 C (flat 3), fret 23 Eb (flat 5).
- A string: fret 0 A (1), fret 3 C (flat 3), fret 6 Eb (flat 5), fret 10 G (flat 7), fret 12 A (1), fret 15 C (flat 3), fret 18 Eb (flat 5), fret 22 G (flat 7), fret 24 A (1).
- D string: fret 1 Eb (flat 5), fret 5 G (flat 7), fret 7 A (1), fret 10 C (flat 3), fret 13 Eb (flat 5), fret 17 G (flat 7), fret 19 A (1), fret 22 C (flat 3).
- G string: fret 0 G (flat 7), fret 2 A (1), fret 5 C (flat 3), fret 8 Eb (flat 5), fret 12 G (flat 7), fret 14 A (1), fret 17 C (flat 3), fret 20 Eb (flat 5), fret 24 G (flat 7).
- B string: fret 1 C (flat 3), fret 4 Eb (flat 5), fret 8 G (flat 7), fret 10 A (1), fret 13 C (flat 3), fret 16 Eb (flat 5), fret 20 G (flat 7), fret 22 A (1).
- e string: fret 3 G (flat 7), fret 5 A (1), fret 8 C (flat 3), fret 11 Eb (flat 5), fret 15 G (flat 7), fret 17 A (1), fret 20 C (flat 3), fret 23 Eb (flat 5).
Swipe the chart sideways to see all of it.
Questions
What notes are in the Am7b5 chord?
Am7b5 (A half-diminished seventh) has four notes: A, C, E flat and G. Its formula is 1, b3, b5, b7. A is the root, C is the minor third, Eb is the tritone and G is the minor seventh.
How do you play Am7b5 on guitar?
The easiest shape is x01013. Fingers: 1 on D, 2 on B, 3 on e.
What key is Am7b5 in?
In major keys, Am7b5 is the viiø7 chord in Bb major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Am7b5 and Adim7?
Am7b5 and Adim7 share A, C and Eb. Am7b5 has G, the flat 7th, where Adim7 has Gb, the double flat 7th.