A°7 chord on 6-String Guitar – Open Gm
in Open Gm (D-G-D-G-A#-D) tuning
A°7
Diminished 7
Notes:A · C · D# · F#
Piano Left hand Right hand
Fingerings (16)
A°7 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| x 2 1 x 2 4 | – 2 1 – 3 4 | x A D# x C F# | hard | |
| x 2 4 5 5 x | – 1 2 3 4 – | x A F# C D# x | medium | |
| x x 7 5 5 4 | – – 4 2 3 1 | x x A C D# F# | medium | |
| 7 5 x 8 8 x | 2 1 – 3 4 – | A C x D# F# x | hard | |
| x x 7 8 8 10 | – – 1 2 3 4 | x x A D# F# C | medium | |
| x 8 10 11 11 x | – 1 2 3 4 – | x D# C F# A x | medium | |
| x 2 4 x 2 1 | – 2 4 – 3 1 | x A F# x C D# | hard | |
| x 2 x 5 5 4 | – 1 – 3 4 2 | x A x C D# F# | hard | |
| 7 x 4 5 5 4 | 4 – 1 2 3 1 | A x F# C D# F# | hard · barre on fret 4 | |
| 7 8 x 5 8 x | 2 3 – 1 4 – | A D# x C F# x | hard | |
| 7 8 7 x 8 10 | 1 2 1 – 3 4 | A D# A x F# C | hard · barre on fret 7 | |
| x 11 10 8 11 x | – 3 2 1 4 – | x F# C D# A x | medium | |
| x 2 1 5 x 4 | – 2 1 4 – 3 | x A D# C x F# | hard | |
| x 5 4 2 5 x | – 3 2 1 4 – | x C F# A D# x | medium | |
| 7 5 4 8 x x | 3 2 1 4 – – | A C F# D# x x | hard | |
| x 5 7 8 8 x | – 1 2 3 4 – | x C A D# F# x | medium |
The A°7 chord (Diminished 7) is built from the notes A, C, D#, F#. Below are playable fingerings for 6-String Guitar – Open Gm generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.
How the A°7 chord is built
Formula: 1 · ♭3 · ♭5 · 6
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | A |
| ♭3 | 3 | C |
| ♭5 | 6 | D# |
| 6 | 9 | F# |
More A chords
Other roots
See A°7 in another tuning
What notes make up the A°7 chord?
A°7 is a Diminished 7 chord built from the notes A, C, D#, F#.
How do I read the diagram?
Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.