Triad Chords are chords that are comprised of three notes. A harmony of notes is called a chord if it has 3 notes or more. A 2 note harmony is called an interval. For my part I think its alright to call a two note harmony a chord, power chords (A root and a fifth. The chords used in rock usually because the guitars are distorted or have overdrive/gain that makes the usage of whole barr chords just to noisy depending of course on different settings.) are just two notes for example but in daily parlance called a chord.
In the first video i will show you how the G Major Chord where the root note is on the Low E string is constructed. This is also the typical or normal G Major Barr chord that has the same shape as the F Barr chord which is often the first Barr chord one learns but located two frets or semitones below the G. I would like to point out that when I say down or up the guitar neck I mean that in relation to the notes or music not where your hand is in the physical space. A prerequisite for this video is the focal point of the music theory on this site the Major Scale. The first instance of the major scale displayed in this video will be used to show you how you count or locate the intervals in the chords. Now what do i mean by that? Well like before you need to start to think in roots and intervals. A chord always has a root note. That’s the base note of the chord. If the root note is G then the chord will be called G-something. Now a rule of thumb for basic chords is that the lowest note in the chord, usually on Low E or A string, is the Root. Then we add intervals to the chord. These intervals that I speak of are plainly the intervals found in the Major scale or variations thereof. A Triad Chord (three notes as the name suggests) is thus comprised of a Root note, a third, and a fifth. (color coding fits video). Now in a normal G (G-major) Triad barring chord the Root note is found in 3 octaves. The third only once and the fifth two times.
When we are naming and constructing chords from a base (root) note we always use the major pattern from that specific root to count out the intervals that are located in the chord. Now this brings me to the Minor Chords. Like I said previously we use the Major Scale as the basis for any Music Theory formulas or variations so the first thing to remember is that all Minor Chords have a Flat third (♭3) this means that we take the third in the Major Scale and move it down one semi-tone or fret as you will. It could also be called a minor third I’m guessing because it’s the version of a third that creates the minor or sad sound. Remember this: a Minor chord has a flat third (♭3). Check out the second video on this page to see what I mean and notice the sign we use to indicate a note or a interval that is Flat. The subsequent video is a G-Minor Barr Chord that is the same as the G-Major above but with a Flat third. I know I’m repeating myself but this is important!
The former video above shows a Major Chord Pattern and the latter shows a Minor Chord Pattern but both Chords are examples of chords where the root note in the Chord is on the Low E-string. Next in line is a Barring Chord where the Root note is on the A-string of the Guitar. This video shows the C-Major Chord where the root or the base note of the Chord is located on the A-string. Again these triad chords are just the typical Barr chords used by most intermediate guitar players out there.
Now for the C-Minor Barre chord that is like the above C-Major in every aspect except for the Flat third!
These Chords that are described here above are chord patterns based on root notes or generally the root defines the name of the chord. If I move the G-Minor or Major up one fret or semi-tone then it becomes G# or G Sharp. The same goes for the C chords. If you move the C chords up one fret or semi-tone it becomes C# or C Sharp. The video below shows the horizontal movement along the neck displaying the root of the chord and thus the name. This is why I accentuate the need to learn the notes on the Top two strings on the guitar or the Low E-string and A-string.
Next video in line are the G-Major and G-Minor Chord in three variations or based from three root notes starting with the Low E str. going to the A-string and finally the chord based from the D-string.
And the same treatment of course for the C-Major and C-Minor Barre Chords. Or three variations of them respectively ranging from the root note on the low E-string to the Astr. to the Dstr.
Finally all of the above rolled up in one.