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