B Dominant 7th (♭5) :: B D♯ F A

F
C
G
D
♭5
3
♭7
3
♭5
♭7
B
♭5
B
♭7
3
♭7
B
3
♭5
B
⬤ ⬤
♭5
⬤ ⬤
C Major 7th :: C E G B

F
C
G
D
C
5
5
3
3
7
C
5
7
C
5
3
7
C
3
7
⬤ ⬤
C
5
⬤ ⬤