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D♭ Major :: D♭ F A♭

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

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

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