Music Theory Lesson
Major vs Minor Tones
Major chords are constructed with the 1st, 3rd, and 5th notes of the Major scale.
Minor chords are constructed with the 1st, b3rd, and 5th notes of the Major scale. "b3" means that the third note of the scale is lowered by one half step.
Let's look at the chord tones of some common Major and Minor chord shapes below.
This common A Major chord shape is constructed of 1 (R for root), 3, and 5.