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