C7(b5,#9) guitar chord (C Dominant 7th, Flat 5th, Sharp 9th)

Symbols: 7(b5,#9), 7(-5,+9)

Steps: 1-3-b5-b7-#9

Notes: C-E-Gb-Bb-D#

The C 7(b5,#9) chord introduces both a flat fifth and a sharp ninth to the dominant seventh, creating an intensely expressive and edgy sound. With notes C, E, Gb, Bb and D#, it's used to evoke a sense of mystery and unease in jazz or fusion. Below, you'll find how to play the "C 7(b5,#9)" chord, finger placements and an audio sample.

Variation 1
C7(b5,#9) guitar chord - variation 1
  • Barre the 2nd fret with your index finger, extending over the 1st to the 4th strings
  • Press down on the B (2nd) string at the 4th fret using your pinky
  • Position your ring finger on the G (3rd) string at the 3rd fret and press down
  • With your middle finger, press down on the A (5th) string at the 3rd fret
  • Now, strum all the strings starting from the 5th string

Other C Chords

[ Table ]

Other Dominant 7th, Flat 5th, Sharp 9th Chords