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