C9 chord on 4-String Bass – Drop C
in Drop C (C-G-C-F) tuning
C9
Dominant 9
Notes:C · E · G · A# · D
Piano Left hand Right hand
Fingerings (10)
C9 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| 2 5 4 5 | 1 3 2 4 | D C E A# | medium | |
| 0 7 4 5 | – 3 1 2 | C D E A# | medium | |
| 0 7 10 11 | – 1 2 3 | C D A# E | hard | |
| 0 9 10 9 | – 1 2 1 | C E A# D | easy · barre on fret 9 | |
| 4 5 2 5 | 2 3 1 4 | E C D A# | medium | |
| 4 7 0 5 | 1 3 – 2 | E D C A# | medium | |
| 10 7 0 11 | 2 1 – 3 | A# D C E | hard | |
| 12 9 10 9 | 3 1 2 1 | C E A# D | medium · barre on fret 9 | |
| 10 9 0 9 | 3 1 – 2 | A# E C D | easy | |
| 10 9 12 9 | 2 1 3 1 | A# E C D | medium · barre on fret 9 |
The C9 chord (Dominant 9) is built from the notes C, E, G, A#, D. Below are playable fingerings for 4-String Bass – 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 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.