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D9 Chord: Guitar, Piano and Notes

The D9 chord is a dominant ninth chord built on the root note D. Its notes are D, F♯, A, C and E.

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Quality
Short answer

Dominant ninth chords are a dominant seventh with extra shine. The ninth on top softens the bite of the tritone below it, which is why funk, soul and blues rhythm guitar lives on this chord.

Notes
D · F♯ · A · C · E
Formula
1 · 3 · 5 · ♭7 · 9
Semitones
0 · 4 · 7 · 10 · 14
Note
D
Quality
Dominant 9
Symbol
D9

D9 on piano

5 notes
View:
Piano diagram of the D9 chord

Switch to the interactive diagram to hear the chord, change voicing and swap finger numbers for note names.

To play D9 on piano, place your right hand with your thumb on D, index finger on F♯, middle finger on A, ring finger on C and little finger on E. Press the keys together and listen for an even sound. On the keyboard F♯ is a black key and D, A, C and E are white. Practice moving in and out of the chord slowly, then bring in a metronome.

  • D1
  • F♯3
  • A5
  • C♭7
  • E9

D9 on guitar

View:
Guitar chord diagram of the D9 chord

Switch to the interactive diagram to hear the chord, change voicing and swap finger numbers for note names.

On guitar, D9 is commonly played with the voicing shown above. The fretted notes sit between frets 4 and 5. Don't play string 6.

D · F♯ · A · C · E

Play D9 on the online piano

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D9 chord notes

DegreeIntervalSemitonesNoteHear
1Root0D
3Major third4F♯(F#)
5Perfect fifth7A
♭7Minor seventh10C
9Major ninth14E

How to use the D9 chord

The D9 chord is built from a root, a major third, a perfect fifth, a minor seventh and a major ninth. Start at the root D and stack the intervals to get the whole chord: D, F♯, A, C and E. The same formula gives you the chord in any other key.

Dominant ninth chords take the place of a plain dominant seventh in blues, funk, soul and jazz. As the V9 they resolve just like a V7 does, only with more colour on the way.

How D9 differs from similar chords

D9 is D7 with a major ninth on top, so it keeps the dominant pull of the tritone. It differs from Dmaj9 in the seventh, minor rather than major, and from Dadd9, which has no seventh at all. In D7♭9 and D7♯9 the same ninth is moved a half step down or up.

Where D9 is used

A dominant chord wants to resolve. Its home is the V of a major key - and the I of a blues, where the pull never lets up.

As the VG major
  1. ii7Am7
  2. V9D9
  3. Imaj7Gmaj7

D9 is the chord that wants to resolve, so ending the loop on it hands straight back to the top.

As the I of a bluesD major
  1. I9D9
  2. IV9G9
  3. I9D9
  4. V9A9

The twelve-bar shape boiled down. The tonic is itself a dominant seventh, which is what makes it a blues.

Questions people ask

What notes are in the D9 chord?
The D9 chord contains D, F♯, A, C and E (D, F#, A, C and E in plain text).
Is the D9 chord major or minor?
D9 is a dominant ninth chord. Dominant ninth chords are a dominant seventh with extra shine. The ninth on top softens the bite of the tritone below it, which is why funk, soul and blues rhythm guitar lives on this chord.
How do you play D9 on piano?
Place your fingers on D, F♯, A, C and E and play them together. The root usually goes to the little finger of the left hand, the upper notes to the right. On the keyboard F♯ is a black key and D, A, C and E are white.
How do you play D9 on guitar?
Use the fingering in the diagram above. The fretted notes sit between frets 4 and 5. Don't play string 6.
What chords work well with D9?
D9 pairs naturally with the chords in the related section: a perfect fifth up or down, the relative major or minor, and anything sharing two notes with it.