F Diminished :: F A♭ C♭

F
C
G
D
F
♭3
♭3
F
♭5
F
♭5
♭3
♭3
♭5
F
♭5
⬤ ⬤
F
⬤ ⬤
A♭ Minor 9th :: A♭ C♭ E♭ G♭ B♭

F
C
G
D
♭7
A♭
5
A♭
5
9
♭3
♭7
9
♭3
♭7
A♭
A♭
5
9
♭3
5
9
♭3
♭7
⬤ ⬤
⬤ ⬤