D Augmented 7th (♭9)
::
D
F♯
A♯
C
E♭
G
D
A
E
D
♭9
♯5
3
⬤
♯5
♭7
⬤
3
⬤
♭7
D
⬤
♭9
♯5
⬤
D
⬤
♭9
♯5
♭7
⬤
3
⬤
♭7
D
3
♭9
⬤ ⬤
D
⬤ ⬤