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C7♯9/G guitar shapes

Popular fretboard positions with fingering suggestions

Showing 8 of 18 playable shapes

About the chord

C dominant 7th sharp 9th / G (2nd inversion)

The C dominant 7th sharp 9th dominant 7th sharp 9th chord introduces a sharp ninth D♯, creating a bluesy, expressive tension. The clash between the major third E and sharp ninth D♯ gives it a powerful, gritty sound used in jazz, funk, and rock. With G in the bass, this voicing functions as the 2nd inversion of C dominant 7th sharp 9th.

Root note: C
Bass note: G
Chord tones: 5
Playable shapes: 18

Chord tones

CEGB♭D♯

Notes & Intervals

Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.

C Unison (Root) 1

The root anchors the chord and defines its tonal center.

E Major Third 3

This note defines the chord's major quality and brings brightness to the sound.

G Perfect Fifth 5

The fifth reinforces stability and gives the chord its strong harmonic frame.

B♭ Minor Seventh ♭7

The minor seventh adds bluesy or jazzy tension that wants to move onward.

D♯ Augmented Ninth ♯9

This tone contributes color and function inside the chord voicing.

Related Articles

Articles that reference this chord and explain how to use it in your playing.