Cm9 chord (C minor ninth) on piano
Cm9 (C minor ninth) has five notes: C, E flat, G, B flat and D. Its formula is 1, b3, 5, b7, 9. In major keys, Cm9 is the ii9 chord in Bb major and the vi9 in Eb major.
Cm9 inversions and fingering
C Eb Bb · LH 5-3-1
C Bb Eb G D · RH 1-2-5 · LH 5-1
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| Symbol | Cm9 |
|---|---|
| Also written | Cmin9, C-9 |
| Notes | C Eb G Bb D |
| Formula | 1 b3 5 b7 9 |
| Intervals | root, minor third, perfect fifth, minor seventh, major second |
| Type | Minor ninth chord |
Cm9 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: C3 (1), D3 (9), Eb3 (flat 3), G3 (5), Bb3 (flat 7), C4 (1), D4 (9), Eb4 (flat 3), G4 (5), Bb4 (flat 7), C5 (1).
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Questions
What notes are in the Cm9 chord?
Cm9 (C minor ninth) has five notes: C, E flat, G, B flat and D. Its formula is 1, b3, 5, b7, 9. C is the root, Eb is the minor third, G is the perfect fifth, Bb is the minor seventh and D is the major second.
How do you play Cm9 on piano?
Play C, Eb, G, Bb and D together. Shell (left hand): C Eb Bb · LH 5-3-1.
What key is Cm9 in?
In major keys, Cm9 is the ii9 chord in Bb major and the vi9 in Eb major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Cm9 and Cm7?
Cm9 is Cm7 (C, Eb, G and Bb) with D, the 9th, added.