C Dominant 7th (♭5)
::
C
E
G♭
B♭
A
E
C
G
3
C
♭7
♭5
⬤
C
♭7
⬤
3
⬤
C
⬤
♭7
♭5
⬤
3
⬤
C
⬤
♭5
3
⬤
♭7
♭5
⬤ ⬤
3
C
⬤ ⬤