C9 chord on 6-String Guitar – Open B
in Open B (B-F#-B-F#-B-D#) tuning
C9
Dominant 9
Notes:C · E · G · A# · D
Piano Left hand Right hand
Fingerings (16)
C9 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| 1 1 1 4 3 1 | 1 1 1 3 2 1 | C G C A# D E | medium · barre on fret 1 | |
| x 6 3 4 5 x | – 4 1 2 3 – | x C D A# E x | medium | |
| x 6 5 8 5 7 | – 2 1 4 1 3 | x C E D E A# | medium · barre on fret 5 | |
| 8 8 8 10 11 9 | 1 1 1 3 4 2 | G D G E A# C | medium · barre on fret 8 | |
| 1 1 3 4 1 1 | 1 1 2 3 1 1 | C G D A# C E | medium · barre on fret 1 | |
| x 6 5 4 3 x | – 4 3 2 1 – | x C E A# D x | medium | |
| x 6 x 8 5 7 | – 2 – 4 1 3 | x C x D E A# | hard | |
| 8 8 11 10 8 9 | 1 1 4 3 1 2 | G D A# E G C | medium · barre on fret 8 | |
| 1 1 3 4 3 1 | 1 1 2 4 3 1 | C G D A# D E | medium · barre on fret 1 | |
| 3 4 3 6 5 x | 1 2 1 4 3 – | D A# D C E x | medium · barre on fret 3 | |
| x 6 5 8 x 7 | – 2 1 4 – 3 | x C E D x A# | hard | |
| 8 10 8 8 11 9 | 1 3 1 1 4 2 | G E G D A# C | medium · barre on fret 8 | |
| 1 4 1 1 3 1 | 1 3 1 1 2 1 | C A# C G D E | medium · barre on fret 1 | |
| 3 4 5 6 3 x | 1 2 3 4 1 – | D A# E C D x | medium · barre on fret 3 | |
| 5 6 5 8 5 7 | 1 2 1 4 1 3 | E C E D E A# | medium · barre on fret 5 | |
| 8 10 11 8 8 9 | 1 3 4 1 1 2 | G E A# D G C | medium · barre on fret 8 |
The C9 chord (Dominant 9) is built from the notes C, E, G, A#, D. Below are playable fingerings for 6-String Guitar – Open 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 C9 chord is built
Formula: 1 · 3 · 5 · ♭7 · 9
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | C |
| 3 | 4 | E |
| 5 | 7 | G |
| ♭7 | 10 | A# |
| 9 | 14 | D |
More C chords
Other roots
See C9 in another tuning
What notes make up the C9 chord?
C9 is a Dominant 9 chord built from the notes C, E, G, A#, 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.