B♭ Major 7th :: B♭ D F A

A
E
C
G
7
B♭
5
3
7
B♭
3
7
5
B♭
3
5
7
3
B♭
5
⬤ ⬤
7
⬤ ⬤
A
A Minor 7th (♭5) :: A C E♭ G

A
E
C
G
A
♭3
♭7
A
♭3
♭7
♭5
A
♭3
♭5
♭7
♭3
♭5
A
♭7
♭5
⬤ ⬤
A
♭3
♭7
⬤ ⬤