A°7 chord on 12-String Guitar – Open G
in Open G (D-D-G-G-D-D-G-G-B-B-D-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 x 2 2 1 1 2 2 1 1 4 4 | – – 2 2 1 1 3 3 1 1 4 4 | x x A A D# D# A A C C F# F# | medium · barre on fret 1 | |
| x x 2 2 4 4 5 5 4 4 x x | – – 1 1 2 2 4 4 3 3 – – | x x A A F# F# C C D# D# x x | medium | |
| 7 7 5 5 4 4 5 5 4 4 4 4 | 4 4 2 2 1 1 3 3 1 1 1 1 | A A C C F# F# C C D# D# F# F# | medium · barre on fret 4 | |
| 7 7 5 5 x x 8 8 7 7 x x | 2 2 1 1 – – 4 4 3 3 – – | A A C C x x D# D# F# F# x x | hard | |
| 7 7 8 8 7 7 8 8 7 7 10 10 | 1 1 2 2 1 1 3 3 1 1 4 4 | A A D# D# A A D# D# F# F# C C | medium · barre on fret 7 | |
| x x 8 8 10 10 11 11 10 10 x x | – – 1 1 2 2 4 4 3 3 – – | x x D# D# C C F# F# A A x x | medium | |
| x x 2 2 1 1 5 5 1 1 4 4 | – – 2 2 1 1 4 4 1 1 3 3 | x x A A D# D# C C C C F# F# | hard · barre on fret 1 | |
| x x 2 2 x x 5 5 4 4 4 4 | – – 1 1 – – 4 4 2 2 3 3 | x x A A x x C C D# D# F# F# | hard | |
| 7 7 5 5 4 4 5 5 4 4 x x | 4 4 2 2 1 1 3 3 1 1 – – | A A C C F# F# C C D# D# x x | medium · barre on fret 4 | |
| 7 7 8 8 x x 5 5 7 7 x x | 2 2 4 4 – – 1 1 3 3 – – | A A D# D# x x C C F# F# x x | hard | |
| 7 7 8 8 10 10 8 8 7 7 7 7 | 1 1 2 2 4 4 3 3 1 1 1 1 | A A D# D# C C D# D# F# F# A A | medium · barre on fret 7 | |
| x x 11 11 10 10 8 8 10 10 x x | – – 4 4 2 2 1 1 3 3 – – | x x F# F# C C D# D# A A x x | medium | |
| x x 2 2 1 1 x x 1 1 4 4 | – – 3 3 1 1 – – 2 2 4 4 | x x A A D# D# x x C C F# F# | hard | |
| x x 5 5 4 4 2 2 4 4 x x | – – 4 4 2 2 1 1 3 3 – – | x x C C F# F# A A D# D# x x | medium | |
| 7 7 5 5 4 4 8 8 4 4 4 4 | 3 3 2 2 1 1 4 4 1 1 1 1 | A A C C F# F# D# D# D# D# F# F# | hard · barre on fret 4 | |
| x x 5 5 7 7 8 8 7 7 x x | – – 1 1 2 2 4 4 3 3 – – | x x C C A A D# D# F# F# x x | medium |
The A°7 chord (Diminished 7) is built from the notes A, C, D#, F#. Below are playable fingerings for 12-String Guitar – Open G 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.