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