D Dominant 7th (♭5)
::
D
F♯
A♭
C
A
E
C
G
♭7
♭5
3
D
⬤
♭7
⬤
♭5
⬤
D
♭7
⬤
3
⬤
D
⬤
♭7
♭5
⬤
3
⬤
D
♭5
3
⬤ ⬤
♭7
⬤ ⬤