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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
E Augmented 7th (♭9) :: E G♯ C D F

A
E
C
G
E
♯5
♭9
3
♭7
♯5
3
E
♭7
♭9
♯5
E
♭7
♭9
♯5
3
E
♭7
♭9
3
⬤ ⬤
E
♯5
⬤ ⬤
G♭ Sus 4th :: G♭ B D♭

A
E
C
G
5
4
G♭
5
4
G♭
5
4
G♭
5
4
G♭
⬤ ⬤
⬤ ⬤