C Major 7th (♭5) :: C E G♭ B

B
F♯
D
A
7
♭5
C
3
7
C
♭5
3
7
C
♭5
3
7
♭5
3
C
⬤ ⬤
7
♭5
⬤ ⬤
F Major 6th :: F A C D

B
F♯
D
A
6
3
5
6
3
F
5
6
F
5
3
6
F
3
5
F
⬤ ⬤
6
3
⬤ ⬤