Major Chord

The basic major chord is a three-note chord,
or triad, consisting of notes found at the first,
major third and perfect fifth
intervals of a major scale.
The major triad can also be said to be built by
finding the root (note), the next note which is a
major third (interval) from the root,
and the next note which is a minor third (interval)
from the previous note.
The major triad is derived from three notes
of the major scale in the same key,
from the root note they are every 3rd note
of the major scale, played at the same time.

The major chord is played by simultaneously sounding
the tones at the first, fifth and eighth notes of
the chromatic scale- or; a root, a note 4 frets higher
than the first, and a note 7 frets higher than the tonic.

Major chords sound happy and simple,
they are considered consonant and stable,
or not needing resolution. You can add
variations and depth to a major triad by
adding unison notes or 1st, 3rd & 5th notes of
higher and lower octaves.