Music Theory

Key of C major

Scale: C D E F G A B

Major: C, F, G

Minor: Dm, Em, Am

Diminished: B (rare)

Relative minor: A

Common progression: I - V - vi - IV

• C - G - Am - F

Borrowed chord: Bb

Key of G major

Scale: G A B C D E F#

Major: G, C, D

Minor: Am, Bm, Em

Diminished: F# (rare)

Relative minor: E

Common progression: I - V - vi - IV

• G - D - Em - C

Borrowed chord: F major

Key of D major

Scale: D E F# G A B C#

Major: D, G, A

Minor: Bm, C#m, Em

Diminished: C# (rare)

Relative minor: B

Common progression: I - V - vi - IV

• D - A - Bm - G

Borrowed chord: C major

Key of A major

Scale: A B C# D E F# G#

Major: A, D, E

Minor: F#m, G#m, Bm

Diminished: C# (rare)

Relative minor: F#

Common progression: I - V - vi - IV

• A - E - F#m - D

Borrowed chord: D major