C Major :: C E G

A
E
C
G
3
C
5
C
5
3
C
3
5
C
3
5
⬤ ⬤
3
C
5
⬤ ⬤
C
D Augmented 7th (♭9) :: D F♯ A♯ C E♭

A
E
C
G
♭7
♯5
3
D
♭7
♭9
♯5
D
♭7
♭9
♯5
3
D
♭7
♭9
3
D
♯5
♭9
3
⬤ ⬤
♭7
⬤ ⬤