Diminished ninth chords
The diminished ninth chord is written dim9.
- Intervals
- The intervals are a minor third, a diminished fifth, a diminished seventh, and a major ninth.
- Formula
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Degrees 1 ♭3 ♭5 ♭♭7 9 Semitones 0-3-6-9-14
Diminished ninth chords on all 12 roots
Root spelling
Pick a root to see it on the piano, or jump straight to the guitar view.
- C C°9 chord piano guitar
- D flat Db°9 chord piano guitar
- D D°9 chord piano guitar
- E flat Eb°9 chord piano guitar
- E E°9 chord piano guitar
- F F°9 chord piano guitar
- G flat Gb°9 chord piano guitar
- G G°9 chord piano guitar
- A flat Ab°9 chord piano guitar
- A A°9 chord piano guitar
- B flat Bb°9 chord piano guitar
- B B°9 chord piano guitar
