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 6th :: B D F♯ G♯

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