G♭ Dominant 7th (♭5)
::
G♭
B♭
C
E
⨉
A
E
C
G
♭7
♭5
3
G♭
⬤
♭5
3
⬤
♭7
⬤
♭5
⬤
3
G♭
⬤
♭7
⬤
♭5
⬤
G♭
♭7
⬤
3
G♭
⬤ ⬤
♭7
♭5
⬤ ⬤
B♭
E
B♭ Diminished 7th
::
B♭
D♭
E
G
⨉
A
E
C
G
♭5
𝄫7
B♭
♭3
⬤
𝄫7
B♭
⬤
♭3
♭5
⬤
⬤
B♭
♭3
⬤
♭5
𝄫7
⬤
⬤
♭3
♭5
⬤
𝄫7
B♭
⬤ ⬤
♭5
𝄫7
⬤ ⬤