What notes are in the C7♯9 chord?

C7♯9 (C dominant 7♯9 (hendrix)) contains C, E, G, B♭, D♯ — formula 1 3 5 ♭7 ♯9.

How do you play C7♯9 on guitar?

A common shape is x31310 (low E to high E, x = muted string, open position). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.

What scale goes with C7♯9?

Good choices to solo over C7♯9: C Diminished (half-whole).

C7♯9 Chord on Guitar

C7♯9 is the C dominant 7♯9 (hendrix) chord — 5 notes (C, E, G, B♭, D♯) built from the formula 1 3 5 ♭7 ♯9. Below are playable shapes across the fretboard, the keys it belongs to and the scales to use when soloing over it.

Notes: C · E · G · B♭ · D♯Formula: 1 · 3 · 5 · ♭7 · ♯9Hear it and see it on the fretboard ▸

C7♯9: Chord shapes (open & barre)

open position
fret 2
fret 5
fret 8
fret 9

C7♯9: Shell voicings (jazz)

R-3-7
R-3-7
R-7-3
R-7-3

Scales to play over C7♯9

C Diminished Scale (Half-whole)

Ordered from the most common choice. All of them contain C, E, G, B♭, D♯.

Other C chords

Triads

Sevenths

Sixths

Added

Extended

Dominant 7♯9 (Hendrix) chords in other keys

FAQ

What notes are in the C7♯9 chord?: C7♯9 (C dominant 7♯9 (hendrix)) contains C, E, G, B♭, D♯ — formula 1 3 5 ♭7 ♯9.
How do you play C7♯9 on guitar?: A common shape is x31310 (low E to high E, x = muted string, open position). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.
What scale goes with C7♯9?: Good choices to solo over C7♯9: C Diminished (half-whole).