Major Triads
This is the most simple triad to create. It is a Major Chord. You can use this triad as the basis of creating other chords by altering it on the fly.
Major Triad: ROOT, M3, P5
This is the 1st, 3rd and 5th of the major scale. It is a simple as that. On keyboard you may invert the chord to M3, P5, ROOT or P5,ROOT,M3 - these would be known as inversions. On guitar you may omit the 3rd in the first octave and play it in the second octave, it is also likely that you will repeat the ROOT and P5 an octave higher.
Things to know:
You will not always represent M3 in the first octave, and with ‘heavy distortion’ you will almost never use the 3rd in any octave.