G Major 7th (♭5) :: G B D♭ F♯

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

F
C
G
D
♭3
5
♭3
♭7
♭7
B
5
B
5
♭3
♭7
♭3
♭7
B
B
5
⬤ ⬤
♭3
⬤ ⬤