A Half Diminished 7th
::
A
C
E♭
G
C
G
D
A
E
B
♭3
♭7
A
♭5
♭3
A
⬤
♭5
♭3
♭7
⬤
♭5
⬤
♭3
♭7
A
⬤
♭5
⬤
♭7
A
⬤
♭5
♭3
♭7
⬤
A
⬤
♭3
♭7
A
♭5
⬤ ⬤
♭3
♭7
A
⬤ ⬤