B♭ Major 7th :: B♭ D F A

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

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