F Diminished :: F A♭ C♭

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

F
C
G
D
6
3
E♭
3
E♭
5
5
6
3
6
3
E♭
5
E♭
5
6
⬤ ⬤
6
3
⬤ ⬤