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