G Major 6th :: G B D E

B
F♯
D
A
3
5
G
6
3
5
6
3
G
5
6
G
5
3
6
G
⬤ ⬤
3
5
⬤ ⬤
G Major 7th (♭5) :: G B D♭ F♯

B
F♯
D
A
3
7
G
♭5
3
7
♭5
3
G
7
♭5
G
3
7
G
♭5
⬤ ⬤
3
7
⬤ ⬤