Electric guitar · Ninth chord

C9C Ninth

Key: F Major
Easy
Open chord

C9 is the C ninth chord on electric guitar, made of the notes C · E · G · A# · D.

Position 1 of 3Main

Notes

C
E
G
A#
D

Structure

1
3
5
♭7
9

Sound: Dominant ninth; Rich, funk and jazz
Harmonic function: Dominant; Creates tension that resolves to the tonic.

Harmonic field of F Major

Degree	Chord	Function
I	F	Tonic
ii	Gm	Subdominant
iii	Am	Tonic relative
IV	A#	Subdominant
V	C	Dominant
vi	Dm	Tonic relative
vii°	Edim	Dominant

How to play

1Place your index finger on fret 3 of string 5.
2Place your middle finger on fret 3 of string 3.
3Place your middle finger on fret 3 of string 2.
4Let strings 4, 1 ring open.
5Don't play string 6.
6Strum from string 5 down.