D Diminished 7th :: D F A♭ C♭

F
C
G
D
♭3
D
♭5
D
♭5
♭3
𝄫7
♭3
𝄫7
♭5
D
♭5
D
𝄫7
♭3
𝄫7
⬤ ⬤
♭3
D
⬤ ⬤
F Major 6th :: F A C D

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