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B♭ Augmented 7th (♭9)
::
B♭
D
F♯
A♭
C♭
G
D
A
E
3
♭7
B♭
♭9
♯5
⬤
B♭
⬤
♭9
♯5
♭7
⬤
3
⬤
♭7
B♭
⬤
3
♭9
⬤
B♭
⬤
♭9
♯5
⬤
3
♯5
♭7
⬤ ⬤
3
⬤ ⬤