Chord · 9ths
D9 — D Dominant 9th
D9 is the D dominant 9th chord. It is built on the root D with major 3rd (F♯), perfect 5th (A), minor 7th (C) and major 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 D9.
- Root
- D
- Quality
- Dominant 9th
- Formula
- 1 3 5 ♭7 9
- Notes
- D F♯ A C E
On the keyboard
Right-hand fingering for this voicing: 1–2–3–4–5 (1 is the thumb).
The notes of D9
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | D | root | D4 |
| 3 | F♯ | major 3rd | F♯4 |
| 5 | A | perfect 5th | A4 |
| ♭7 | C | minor 7th | C5 |
| 9 | E | major 9th | E5 |
Other 9ths on D
Dominant 9th chords on every root
Part of the chord reference. See also the scales and the keys.