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A Half Diminished 7th :: A C E♭ G

A
E
C
G
A
♭3
♭7
A
♭3
♭7
♭5
A
♭3
♭5
♭7
♭3
♭5
A
♭7
♭5
⬤ ⬤
A
♭3
♭7
⬤ ⬤
C G
C Sus 2nd :: C D G

A
E
C
G
C
5
2
C
5
2
C
5
2
C
5
2
⬤ ⬤
C
5
⬤ ⬤
D
B Diminished :: B D F

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