Which notes make up the D♭add9 chord?

The notes are D♭, F, A♭, E♭.

What is the formula of the D♭add9 chord?

The formula is 1 3 5 9: major third, perfect fifth, major ninth.

The D♭add9 chord (add9 (added ninth)) is made of the notes D♭, F, A♭, E♭. Its formula compared with the major scale is 1 3 5 9.

Ninths · 4 notes

Note names

Which notes make up the D♭add9 chord?: The notes are D♭, F, A♭, E♭.
What is the formula of the D♭add9 chord?: The formula is 1 3 5 9: major third, perfect fifth, major ninth.

Texts and tools by Stefano Corradi, professional musician and developer. Last updated: October 8, 2026.

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