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
⬤ ⬤
D♭ Major :: D♭ F A♭

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