Once you know the names of your notes within a Major scale you can start using those notes to build chords. Using a Root (1st or starting note) 3rd (3rd note in the major scale sequence) and a 5th (5th note in the major scale sequence) you can start finding chords that work in harmony with you scale since the chords a built right from that scale. Root Third Fifth or R 3 5 is your formula for building Major, minor and diminished chords.
In this video:
1) take a C major scale C D E F G A B C
2) find the R 3 5 (C E G) 1st note, 3rd note and 5th note
3) Use those 3 notes across the guitar to build an form any C chord.
Each major scale has 7 notes so you can build 7 basic chords from each note
C E G (Major)
D F A (minor)
E G B (minor)
F A C (Major)
G B D (Major)
A C E (minor)
B D F (diminished)
What you will find is that EVERY major scale has the same order of chords
Major, minor, minor, Major, Major, minor,diminished or simply M m m M M m dim
Enjoy. Learn. Share.
@nathanfleet