D Major 7th (♭5) :: D F♯ A♭ C♯

G
D
A
E
D
♭5
3
3
7
♭5
D
7
♭5
D
3
7
D
3
7
♭5
⬤ ⬤
D
⬤ ⬤
D Minor 6th :: D F A B

G
D
A
E
D
5
♭3
5
6
♭3
6
D
5
D
5
6
♭3
6
♭3
D
⬤ ⬤
D
5
⬤ ⬤