F Diminished :: F A♭ C♭

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

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