A° chord on 6-String Guitar – Open G
in Open G (D-G-D-G-B-D) tuning · Also known as Spanish, Taro Patch, Slack Key G
A°
Diminished
Notes:A · C · D#
Piano Left hand Right hand
Fingerings (16)
A° shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| x 2 1 2 1 1 | – 2 1 3 1 1 | x A D# A C D# | easy · barre on fret 1 | |
| x 2 x 5 4 x | – 1 – 3 2 – | x A x C D# x | hard | |
| x x 7 5 4 7 | – – 3 2 1 4 | x x A C D# A | medium | |
| 7 5 7 8 x x | 2 1 3 4 – – | A C A D# x x | medium | |
| x x 7 8 10 10 | – – 1 2 3 4 | x x A D# A C | medium | |
| x 8 10 8 10 10 | – 1 2 1 3 4 | x D# C D# A C | medium · barre on fret 8 | |
| x 2 1 2 1 x | – 2 1 3 1 – | x A D# A C x | easy · barre on fret 1 | |
| x 5 x 2 4 x | – 3 – 1 2 – | x C x A D# x | hard | |
| x x 7 5 4 x | – – 3 2 1 – | x x A C D# x | medium | |
| 7 8 7 5 x x | 2 4 3 1 – – | A D# A C x x | medium | |
| 7 8 10 8 x x | 1 2 4 3 – – | A D# C D# x x | medium | |
| 10 8 10 8 10 x | 2 1 3 1 4 – | C D# C D# A x | medium · barre on fret 8 | |
| x x x 2 1 1 | – – – 3 1 2 | x x x A C D# | easy | |
| 7 x 7 5 4 x | 3 – 4 2 1 – | A x A C D# x | hard | |
| 7 5 x 8 x x | 2 1 – 3 – – | A C x D# x x | hard | |
| 7 8 7 x 10 10 | 1 2 1 – 3 4 | A D# A x A C | hard · barre on fret 7 |
The A° chord (Diminished) is built from the notes A, C, D#. Below are playable fingerings for 6-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° chord is built
Formula: 1 · ♭3 · ♭5
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | A |
| ♭3 | 3 | C |
| ♭5 | 6 | D# |
More A chords
Other roots
See A° in another tuning
What notes make up the A° chord?
A° is a Diminished chord built from the notes A, C, D#.
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.