B Diminished :: B D F

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

G
D
A
E
A♭
5
6
6
3
A♭
3
A♭
5
5
6
3
6
3
A♭
5
⬤ ⬤
⬤ ⬤