C minor 9th chord

Cm9 chord for piano with keyboard diagram.
Explanation: The C minor ninth is a five-note chord. For practical reasons the chord is normally played with omitted notes and/or inverted. The chord is often abbreviated as Cm9 (alternatively Cmin9).
Omissions: Cm9(no3): C - G - Bb - D; Cm9(no5): C - Eb - Bb - D.
Theory: The Cm9 chord is constructed with a root, a minor third, a perfect fifth, a minor seventh and a major ninth.


Cm9 piano chord
Notes: C - Eb - G - Bb - D

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Cm9 inversions and voicings

Cm9/Bb chord diagram
One of many possible inversions (Cm9/Bb)

Cm9 chord diagram
Notes: C - Eb (left hand) G - Bb - D (right hand)
Two-hand voicing

C chord categories

C Cm C7 Cm7 Cmaj7 CmM7 C6 Cm6 C6/9 C5 C9 Cm9 Cmaj9 C11 Cm11 Cmaj11 C13 Cm13 Cmaj13 Cadd C7-5 C7+5 Csus Cdim Cdim7 Cm7b5 Caug Caug7