How to build a minor ninth chord
A minor ninth chord is a minor seventh chord with a major 9th added. It is a rich, smooth chord common in jazz, soul and R&B.
Look up any other chord with the Scale & Chord Finder.
Chord
C♯m9 is a minor ninth chord with the notes C♯, E, G♯, B, D♯. The same chord spelled from D♭ is D♭m9.
| Note | Interval | Semitones |
|---|---|---|
| C♯ | root | 0 |
| E | minor 3rd | 3 |
| G♯ | perfect 5th | 7 |
| B | minor 7th | 10 |
| D♯ | major 9th | 14 |
| Root position | C♯ – E – G♯ – B – D♯ | |
| 1st inversion | E – G♯ – B – D♯ – C♯ (C♯m9/E) | |
| 2nd inversion | G♯ – B – D♯ – C♯ – E (C♯m9/G♯) | |
| 3rd inversion | B – D♯ – C♯ – E – G♯ (C♯m9/B) | |
| 4th inversion | D♯ – C♯ – E – G♯ – B (C♯m9/D♯) |
A minor ninth chord is a minor seventh chord with a major 9th added. It is a rich, smooth chord common in jazz, soul and R&B.
Look up any other chord with the Scale & Chord Finder.