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A Half Diminished 7th :: A C E♭ G

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

E
B
G
D
A
E
B
♭3
♭5
♭5
B
♭3
♭5
B
♭3
♭5
B
♭3
B
♭5
B
♭3
♭5
♭3
⬤ ⬤
B
♭3
⬤ ⬤
B Half Diminished 7th :: B D F A

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