D♭ Major 7th (♭5)
::
D♭
F
G
C
B
F♯
D
A
7
♭5
D♭
⬤
3
7
⬤
D♭
⬤
♭5
⬤
3
7
⬤
D♭
⬤
♭5
3
⬤
⬤
7
♭5
3
D♭
⬤ ⬤
⬤ ⬤