C Major 7th (♭5) :: C E G♭ B

G
D
A
E
3
3
7
♭5
C
7
♭5
C
3
7
C
3
7
♭5
C
♭5
⬤ ⬤
3
⬤ ⬤
B Minor 7th :: B D F♯ A

G
D
A
E
♭3
♭7
♭7
B
5
B
5
♭3
♭7
♭3
♭7
B
B
5
♭3
5
⬤ ⬤
♭3
♭7
⬤ ⬤