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