F Dominant 7th (♭5) :: F A C♭ E♭

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