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