Chord · Altered Dom.
D7♭5♭9 — D Altered ♭5♭9
D7♭5♭9 is the D altered ♭5♭9 chord. It is built on the root D with major 3rd (F♯), diminished 5th (A♭), minor 7th (C) and minor 9th (E♭) above it — the formula 1 3 ♭5 ♭7 ♭9, sounding the notes D F♯ A♭ C 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 D7♭5♭9.
- Root
- D
- Quality
- Altered ♭5♭9
- Formula
- 1 3 ♭5 ♭7 ♭9
- Notes
- D F♯ A♭ C E♭
On the keyboard
The notes of D7♭5♭9
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | D | root | D4 |
| 3 | F♯ | major 3rd | F♯4 |
| ♭5 | A♭ | diminished 5th | A♭4 |
| ♭7 | C | minor 7th | C5 |
| ♭9 | E♭ | minor 9th | E♭5 |
Other altered dom. on D
Altered ♭5♭9 chords on every root
Part of the chord reference. See also the scales and the keys.