A♭ Half Diminished 7th
::
A♭
B
D
G♭
A
E
C
G
A♭
♭3
♭7
♭5
⬤
⬤
A♭
♭3
⬤
♭5
⬤
♭7
⬤
♭3
♭5
⬤
A♭
⬤
♭7
⬤
♭5
A♭
♭3
♭7
⬤ ⬤
⬤ ⬤