A°7 chord on 6-String Guitar – All Fourths
in All Fourths (E-A-D-G-C-F) tuning · Also known as Perfect Fourths
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 1 2 0 1 | – – 1 3 – 2 | x A D# A C F# | easy | |
| 2 3 4 2 3 x | 1 2 4 1 3 – | F# C F# A D# x | medium · barre on fret 2 | |
| 5 3 4 5 3 x | 3 1 2 4 1 – | A C F# C D# x | medium · barre on fret 3 | |
| 5 6 4 5 0 x | 2 4 1 3 – – | A D# F# C C x | medium | |
| 5 6 7 5 6 x | 1 2 4 1 3 – | A D# A C F# x | medium · barre on fret 5 | |
| x 0 7 8 6 7 | – – 2 4 1 3 | x A A D# F# C | medium | |
| 11 0 7 11 9 7 | 3 – 1 4 2 1 | D# A A F# A C | hard · barre on fret 7 | |
| 8 0 10 11 0 10 | 1 – 2 4 – 3 | C A C F# C D# | medium | |
| x 0 10 11 9 10 | – – 2 4 1 3 | x A C F# A D# | medium | |
| 11 0 10 11 12 10 | 2 – 1 3 4 1 | D# A C F# C D# | medium · barre on fret 10 | |
| 11 0 x 11 0 x | 1 – – 2 – – | D# A x F# C x | easy | |
| x 0 1 x 0 1 | – – 1 – – 2 | x A D# x C F# | easy | |
| x 3 4 2 3 x | – 2 4 1 3 – | x C F# A D# x | medium | |
| 5 x 4 5 3 x | 3 – 2 4 1 – | A x F# C D# x | hard | |
| 5 6 4 5 x x | 2 4 1 3 – – | A D# F# C x x | medium | |
| 5 6 x 5 6 x | 1 3 – 2 4 – | A D# x C F# x | hard |
The A°7 chord (Diminished 7) is built from the notes A, C, D#, F#. Below are playable fingerings for 6-String Guitar – All Fourths 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.