B Dominant 7th (♭5) :: B D♯ F A

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