D Dominant 7th (♭5) :: D F♯ A♭ C

B
F♯
D
A
3
D
♭7
♭5
D
♭7
3
D
♭7
♭5
3
D
♭5
3
♭7
♭5
⬤ ⬤
3
D
⬤ ⬤
F Major :: F A C

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