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D Major 7th (♭5) :: D F♯ A♭ C♯

A
E
C
G
7
♭5
3
D
7
♭5
D
3
7
D
♭5
3
7
D
♭5
3
⬤ ⬤
⬤ ⬤
F♯
A Diminished 7th :: A C E♭ G♭

A
E
C
G
A
♭3
𝄫7
A
♭3
♭5
A
♭3
♭5
𝄫7
♭3
♭5
𝄫7
A
♭5
𝄫7
⬤ ⬤
A
♭3
⬤ ⬤
C
G Dominant 7th Sus 4 :: G C D F

A
E
C
G
4
G
♭7
5
4
G
5
♭7
4
G
5
♭7
4
G
5
♭7
⬤ ⬤
4
G
⬤ ⬤