A♭ Diminished 7th
::
A♭
C♭
D
F
B
F♯
D
A
♭3
♭5
A♭
♭3
⬤
♭5
𝄫7
⬤
⬤
♭3
♭5
⬤
𝄫7
A♭
⬤
⬤
♭5
𝄫7
⬤
A♭
♭3
⬤
𝄫7
A♭
⬤ ⬤
♭3
♭5
⬤ ⬤