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C Major 7th (♭5) :: C E G♭ B

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

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