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C Diminished :: C E♭ G♭

E
B
G
D
A
E
C
♭3
♭5
♭5
C
♭3
♭5
C
♭3
♭5
C
♭3
C
♭5
C
♭3
♭5
♭3
⬤ ⬤
⬤ ⬤
A Minor 9th :: A C E G B

E
B
G
D
A
E
5
9
♭7
A
5
♭3
A
5
9
♭7
♭3
♭7
9
A
5
♭3
♭7
A
9
A
5
9
♭3
♭7
♭3
5
9
A
♭3
♭7
⬤ ⬤
5
9
♭7
A
5
⬤ ⬤