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G Diminished :: G B♭ D♭

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

A
E
C
G
A
♭7
3
A
♭7
♭5
3
A
♭5
3
♭7
♭5
3
A
♭7
♭5
⬤ ⬤
A
♭7
⬤ ⬤