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C Dominant 7th (♭5) :: C E G♭ B♭

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

A
E
C
G
♭3
♭5
D♭
♭7
♭5
D♭
♭3
♭7
D♭
♭3
♭7
♭5
D♭
♭3
♭5
♭7
⬤ ⬤
♭3
♭5
⬤ ⬤
G B
G Major 11th :: G B D F♯ A C

A
E
C
G
9
11
G
3
7
5
9
11
G
3
5
9
11
7
3
G
5
11
7
9
G
5
3
7
⬤ ⬤
9
11
G
⬤ ⬤