B♭ Augmented 7th :: B♭ D F♯ A♭

B
F♯
D
A
♯5
3
B♭
♭7
3
B♭
♯5
3
♭7
♯5
3
B♭
♭7
♯5
B♭
♭7
⬤ ⬤
♯5
3
⬤ ⬤