D Half Diminished 7th :: D F A♭ C

F
C
G
D
♭3
♭7
D
♭5
D
♭5
♭3
♭3
♭7
♭5
♭7
D
♭5
D
♭3
♭7
⬤ ⬤
♭3
♭7
D
⬤ ⬤
A Major :: A C♯ E

F
C
G
D
3
A
5
A
5
3
A
3
A
5
5
3
⬤ ⬤
⬤ ⬤