B♭ Major 7th :: B♭ D F A

G
D
A
E
3
7
B♭
5
7
B♭
5
3
7
B♭
3
7
B♭
5
5
3
⬤ ⬤
3
7
⬤ ⬤
G♭ Major :: G♭ B♭ D♭

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