Topic summary
Major triad
Extracted from the Wikipedia article Major chord.
Structure
The primary intervals in a major chord are the major third between the first and second notes, the perfect fifth between the first and third notes, and the minor third between the second and third notes. It is a tertian chord, because it is built in thirds. When the root of the chord is not in the bass, the chord is considered inverted. In integer notation, a major triad is {0,4,7}.