B♭ Major 6th :: B♭ D F G

B
F♯
D
A
3
6
B♭
3
5
B♭
6
3
5
6
3
B♭
5
6
B♭
5
⬤ ⬤
3
⬤ ⬤
C Major 9th :: C E G B D

B
F♯
D
A
7
9
C
5
3
7
9
C
3
7
5
9
C
3
5
9
7
3
C
5
⬤ ⬤
7
9
⬤ ⬤