F Diminished :: F A♭ B

F
C
G
D
F
♭3
♭3
F
♭5
F
♭5
♭3
♭3
♭5
F
♭5
⬤ ⬤
F
⬤ ⬤
B
B Major 9th :: B D♯ F♯ A♯ C♯

F
C
G
D
5
9
3
3
7
B
5
7
B
5
9
9
3
7
B
3
7
B
5
9
⬤ ⬤
⬤ ⬤