C°7 chord on 6-String Guitar – Open A 2
in Open A 2 (E-A-E-A-C#-E) tuning · Also known as Slide A
C°7
Diminished 7
Notes:C · D# · F# · A
Piano Left hand Right hand
Fingerings (16)
C°7 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| x 3 2 0 2 2 | – 4 1 – 2 3 | x C F# A D# F# | medium | |
| x 3 2 3 2 5 | – 2 1 3 1 4 | x C F# C D# A | medium · barre on fret 2 | |
| x 3 5 6 5 x | – 1 2 4 3 – | x C A D# F# x | medium | |
| 8 6 5 6 5 5 | 4 2 1 3 1 1 | C D# A D# F# A | medium · barre on fret 5 | |
| 8 6 x 9 8 x | 2 1 – 4 3 – | C D# x F# A x | hard | |
| 8 9 8 9 8 11 | 1 2 1 3 1 4 | C F# C F# A D# | medium · barre on fret 8 | |
| x 0 11 9 11 11 | – – 2 1 3 4 | x A D# F# C D# | medium | |
| x 3 2 0 2 x | – 3 1 – 2 – | x C F# A D# x | easy | |
| x 3 2 6 2 5 | – 2 1 4 1 3 | x C F# D# D# A | hard · barre on fret 2 | |
| x 3 x 6 5 5 | – 1 – 4 2 3 | x C x D# F# A | hard | |
| 8 6 5 6 5 x | 4 2 1 3 1 – | C D# A D# F# x | medium · barre on fret 5 | |
| 8 9 x 6 8 x | 2 4 – 1 3 – | C F# x D# A x | hard | |
| 8 9 11 9 8 8 | 1 2 4 3 1 1 | C F# D# F# A C | medium · barre on fret 8 | |
| x 9 11 0 11 11 | – 1 2 – 3 4 | x F# D# A C D# | medium | |
| x 3 2 0 2 5 | – 3 1 – 2 4 | x C F# A D# A | medium | |
| x 3 2 x 2 5 | – 3 1 – 2 4 | x C F# x D# A | hard |
The C°7 chord (Diminished 7) is built from the notes C, D#, F#, A. Below are playable fingerings for 6-String Guitar – Open A 2 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 C°7 chord is built
Formula: 1 · ♭3 · ♭5 · 6
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | C |
| ♭3 | 3 | D# |
| ♭5 | 6 | F# |
| 6 | 9 | A |
More C chords
Other roots
See C°7 in another tuning
What notes make up the C°7 chord?
C°7 is a Diminished 7 chord built from the notes C, D#, F#, A.
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.