AP Music Theory

Major Triad

m3/M3

Minor Triad

M3/m3

Diminished Triad

m3/m3

Augmented Triad

M3/M3

C → E

M3

E → G

m3

G → B

M3

B → D

m3

D → F

m3

F → A

M3

A → C

m3

Dominant 7th Chord

m3/m3/M3

Major 7th Chord

M3/m3/M3

Minor 7th Chord

m3/M3/m3

Augmented Cadence

V → I

Perfect Cadence

IV → I

Deceptive Cadence

V → IV

Half Cadence

I → V

Key of C/Am

0 sharps/flats

Key of G/Em

1 sharp

Key of D/Bm

2 sharps

Key of A/F#m

3 sharps

Key of E/C#m

4 sharps

Key of B/G#m

5 sharps

Key of F#/D#m

6 sharps

Key of Gb/Ebm

6 flats

Key of Db/Bbm

5 flats

Key of Ab/Fm

4 flats

Key of Eb/Cm

3 flats

Key of Bb/Gm

2 flats

Key of F/Dm

1 flat

C → E → G

Major Triad

E → G → B

Minor Triad

G → B → D

Major Triad

B → D → F

Diminished Triad

D → F → A

Minor Triad

F → A → C

Major Triad

A → C → E

Minor Triad