D♭ Dominant 7th Sus 4 :: D♭ G♭ A♭ B

A
E
C
G
D♭
5
♭7
4
D♭
5
♭7
4
D♭
♭7
5
4
D♭
5
♭7
4
⬤ ⬤
⬤ ⬤