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