Chord · 9ths
Ddim7/9 — D Diminished 7th / 9th
Ddim7/9 is the D diminished 7th / 9th chord. It is built on the root D with minor 3rd (F), diminished 5th (A♭), major 6th (B) and major 9th (E) above it — the formula 1 ♭3 ♭5 6 9, sounding the notes D F A♭ B E. On the piano it sits at D (octave 4) and above in the library's voicing; the same 5 notes in any octave are still Ddim7/9.
- Root
- D
- Quality
- Diminished 7th / 9th
- Formula
- 1 ♭3 ♭5 6 9
- Notes
- D F A♭ B E
On the keyboard
The notes of Ddim7/9
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | D | root | D4 |
| ♭3 | F | minor 3rd | F4 |
| ♭5 | A♭ | diminished 5th | A♭4 |
| 6 | B | major 6th | B4 |
| 9 | E | major 9th | E5 |
Other 9ths on D
Diminished 7th / 9th chords on every root
Part of the chord reference. See also the scales and the keys.