B Diminished :: B D F

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