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
⬤ ⬤
G Minor 6th :: G B♭ D E

G
D
A
E
G
5
6
♭3
6
♭3
G
G
5
♭3
5
6
♭3
6
G
5
⬤ ⬤
G
5
6
⬤ ⬤