Cm9 chord
C minor ninth
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G
F#
G
G#
A
A#
B
C1
C#
D
D#
E
F
F#
G
C
C
C
C#
D9
D#
E
F
F#
G
G#
A
A#
B
C
D
E
D#
E
F
F#
G
G#
A
A#b7
B
C
C#
D
D#
E
A#
A
G#
A
A#
B
C
C#
D
D#b3
E
F
F#
G
G#
A
D#
3
5
7
10
The Cm9 chord has the formula 1, b3, b7, 9 with notes C, D#, A#, D
The minor ninth chord is used in gospel, R&B, soul and jazz. It is very versatile in R&B progressions, and works well as a smooth chord to end off a chord progression.