A°7 chord on 6-String Guitar – Open A
in Open A (E-A-C#-E-A-E) tuning · Also known as Spanish A
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 0 2 2 3 2 | – – 1 1 2 1 | x A D# F# C F# | easy · barre on fret 2 | |
| 5 3 2 2 3 2 | 4 2 1 1 3 1 | A C D# F# C F# | medium · barre on fret 2 | |
| 5 3 5 x 6 x | 2 1 3 – 4 – | A C F# x D# x | hard | |
| 5 6 5 5 6 8 | 1 2 1 1 3 4 | A D# F# A D# C | medium · barre on fret 5 | |
| x 6 8 8 9 x | – 1 2 3 4 – | x D# A C F# x | medium | |
| 11 0 8 8 9 8 | 3 – 1 1 2 1 | D# A A C F# C | medium · barre on fret 8 | |
| x 0 11 11 9 11 | – – 2 3 1 4 | x A C D# F# D# | medium | |
| x 0 2 2 3 x | – – 1 2 3 – | x A D# F# C x | easy | |
| 5 3 2 2 6 2 | 3 2 1 1 4 1 | A C D# F# D# F# | hard · barre on fret 2 | |
| 5 6 5 x 3 x | 2 4 3 – 1 – | A D# F# x C x | hard | |
| 5 6 5 8 6 5 | 1 2 1 4 3 1 | A D# F# C D# A | medium · barre on fret 5 | |
| x 9 8 8 6 x | – 4 2 3 1 – | x F# A C D# x | medium | |
| 11 0 8 11 9 8 | 3 – 1 4 2 1 | D# A A D# F# C | medium · barre on fret 8 | |
| 11 0 11 11 9 x | 2 – 3 4 1 – | D# A C D# F# x | medium | |
| 5 0 2 2 3 2 | 3 – 1 1 2 1 | A A D# F# C F# | medium · barre on fret 2 | |
| 5 6 2 2 3 2 | 3 4 1 1 2 1 | A D# D# F# C F# | hard · barre on fret 2 |
The A°7 chord (Diminished 7) is built from the notes A, C, D#, F#. Below are playable fingerings for 6-String Guitar – Open A 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.