B♭ Major 6th :: B♭ D F G

G
D
A
E
6
3
B♭
5
B♭
5
6
6
3
B♭
3
B♭
5
5
6
3
⬤ ⬤
6
3
⬤ ⬤
D♭ Minor :: D♭ F♭ A♭

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