V to I resolution
Use the dominant sound to pull strongly into a stable major tonic.
Guitar chord companion
C7#9 Chord
Learn the C7#9 chord on guitar with chord tones, intervals, and interactive fretboard shapes.
1C3E5Gb7Bb#9D#
Playable C7#9 Chord voicings
Start with these chord-box shapes, then use the full fretboard below to see every chord tone.
C shape, open position
Low to high strings: x 3 2 3 4 0
A shape, open position
Low to high strings: 0 3 x x 4 6
G shape, fret 5
Low to high strings: 8 x 5 8 5 6
E shape, fret 8
Low to high strings: 8 10 8 9 8 11
D shape, fret 10
Low to high strings: 12 13 10 x x 11
Full fretboard map
Every C7#9 Chord chord tone across the neck, with roots highlighted for quick orientation.
Frets 0–24. Select a position or tap a note to hear it.
CAGED
Common progressions using C7#9
Try these progressions to hear the chord in context instead of treating it as an isolated shape.
Minor-key dominant pull
The same dominant root can resolve into a minor tonic for a darker cadence.
Turnaround color
Place the dominant at the end of a turnaround so the next phrase has forward motion.
Chord Tones
| Degree | Interval | Note |
|---|---|---|
| 1 | R | C |
| 3 | 3 | E |
| 5 | 5 | G |
| b7 | b7 | Bb |
| #9 | b3 | D# |
Compatible Scales
Formula
R – 3 – 5 – b7 – b3