F Diminished :: F A♭ C♭

F
C
G
D
F
♭3
♭3
F
♭5
F
♭5
♭3
♭3
♭5
F
♭5
⬤ ⬤
F
⬤ ⬤
B♭ Major 7th :: B♭ D F A

F
C
G
D
5
3
3
7
B♭
5
7
B♭
5
3
7
B♭
3
7
B♭
5
⬤ ⬤
5
3
⬤ ⬤