Dominant family
D dominant ninth chord
D9D dominant ninth
Piano root position
- Root
- 3
- 5
- ♭7
- 9
Guitar standard tuning
Fret 4
No barre: each note has its own finger.
Finger: 1 index, 2 middle, 3 ring, 4 little
Notation treble clef
Intervals
12 semitones- D1
- ♭2
- E9
- ♭3
- F♯3
- 4
- ♭5
- A5
- ♯5
- 6
- C♭7
- 7
- D Root
- F♯ Major 3rd
- A Perfect 5th
- C Minor 7th
- E Major 9th
About this chord
What is a D dominant ninth chord?
D9 is built from 5 notes: D (the root), F♯ (the 3), A (the 5), C (the ♭7), E (the 9). The dominant seventh with a ninth: funky and full.
- Notes
- D · F♯ · A · C · E
- Formula
- 1 · 3 · 5 · ♭7 · 9
- Also written
- Ddom9
- Found in
- Outside the major and minor keys
Neighbours
Chords close to D9
Play it, and Melodio names it.
The desktop app does the same, live: plug in a MIDI keyboard and every chord you hold appears with its notes, intervals and guitar shape. Free.
Download Melodio
Windows · macOS · Linux
All 348 chords
Every chord type on every root, each with its own page.
C
D♭
D
E♭
E
F
G♭
G
A♭
A
B♭