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D dominant ninth chord

The D9 chord (dominant ninth) is made of the notes D, F♯, A, C, E. Its formula compared with the major scale is 1 3 5 ♭7 9.

D9

Ninths · 5 notes

Note names

How it is built

DegreeNoteInterval from the root
1DUnison
3F♯Major third
5APerfect fifth
♭7CMinor seventh
9EMajor ninth

Inversions

  • D9D F♯ A C ERoot position

Frequently asked questions

Which notes make up the D9 chord?
The notes are D, F♯, A, C, E.
What is the formula of the D9 chord?
The formula is 1 3 5 ♭7 9: major third, perfect fifth, minor seventh, major ninth.

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