D♭ Dominant 7th
::
D♭
F
A♭
B
G
D
A
E
5
3
♭7
⬤
3
⬤
♭7
D♭
5
⬤
⬤
D♭
5
⬤
♭7
⬤
3
⬤
♭7
D♭
⬤
3
D♭
5
⬤ ⬤
⬤ ⬤