Root : D♭
4th : G♭
5th : A♭
Dominant 7th : B
9th : E♭
D♭9sus4
Contains a G♭ as the bass note.
Notated as D♭/G♭
D♭9sus4/G♭
Contains an A♭ as the bass note.
Notated as D♭/A♭
D♭9sus4/A♭
Contains an E♭ as the bass note.
Notated as D♭/E♭
D♭9sus4/E♭
A jazz sus chord or dominant 9sus4 chord is a seventh chord on the fifth scale degree of the key with a suspended fourth and an added ninth. Functionally, it can be written as V9sus4 or V7sus9.