A°7 chord on 6-String Guitar – Drop C
in Drop C (C-G-C-F-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 0 1 0 1 | – 3 – 1 – 2 | x A C F# A D# | easy | |
| x 2 3 x 3 4 | – 1 2 – 3 4 | x A D# x C F# | hard | |
| 3 5 3 4 3 4 | 1 4 1 2 1 3 | D# C D# A C F# | medium · barre on fret 3 | |
| 0 5 0 4 6 4 | – 2 – 1 3 1 | C C C A D# F# | medium · barre on fret 4 | |
| 9 5 6 x 6 x | 4 1 2 – 3 – | A C F# x D# x | hard | |
| 9 8 6 7 6 x | 4 3 1 2 1 – | A D# F# C D# x | medium · barre on fret 6 | |
| 9 8 0 7 9 7 | 3 2 – 1 4 1 | A D# C C F# A | medium · barre on fret 7 | |
| 9 8 0 10 9 x | 2 1 – 4 3 – | A D# C D# F# x | medium | |
| 9 11 9 10 9 10 | 1 4 1 2 1 3 | A F# A D# F# C | medium · barre on fret 9 | |
| 0 11 12 10 12 10 | – 2 3 1 4 1 | C F# C D# A C | medium · barre on fret 10 | |
| x 2 0 1 3 1 | – 2 – 1 3 1 | x A C F# C D# | medium · barre on fret 1 | |
| 3 2 x x 3 4 | 2 1 – – 3 4 | D# A x x C F# | hard | |
| x x 3 4 3 4 | – – 1 2 1 3 | x x D# A C F# | easy · barre on fret 3 | |
| 0 5 6 4 6 4 | – 2 3 1 4 1 | C C F# A D# F# | medium · barre on fret 4 | |
| 0 5 6 x 6 7 | – 1 2 – 3 4 | C C F# x D# A | hard | |
| 9 8 6 7 0 x | 4 3 1 2 – – | A D# F# C A 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 – Drop C 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.