# A Little Music Theory. Part 2

author: ironwolg date: 04/09/2009 category: for beginners
 rating: 9.9 votes: 15 views: 612 vote for this lesson: Vote 1 - bad 2 3 4 5 - average 6 7 8 9 10 - great Tweet
Ok, hopefully everyone learned something from my last lesson, if not, you're in big trouble here. Now, instead of working with the super simple power chords, we're going to go into full triads and 7th chords. So what's a Triad? A Triad is a 3 note chord. Like a power chord, it has the root(1) and the fifth(5), but it has something else to give it a little more spice: the third(3). So why in the world would we use a 3rd? We need something to make the chord major or minor. You can find the 3rd the exact same way you found the 5th. Let's do a full G chord. Start with the G major scale(i'll be using a 3 note per string pattern, don't freak out, it's hitting the same notes, just more of them)
```-----------------------------------------------5--7--8--
--------------------------------------5--7--8-----------
-----------------------------4--5--7--------------------
--------------------4--5--7-----------------------------
-----------3--5--7--------------------------------------
--3--5--7-----------------------------------------------```
Ok, now there's the full 3 note per string Ionian(Major scale) pattern. If you didn't memorize the conventional pattern in the previous lesson you'd better learn it here or you'll be in a lot of trouble. Here we go. Let's build a G Major Triad from this scale. Take the root which would be G. So that's the 3rd fret of the low E string. Then go down to the 3rd which would be 7th fret of the low E. Now we have a problem. You can't play two notes on the same string at the same time! Well let's work around that. You can take that note and find it somewhere else on the fretboard. In this case, you can move the 3rd up to the 2nd fret of the A string. Now that we have that taken care of, let's go to the 5th. This will be on the 5th fret of the A string. We once again run into the problem of 2 notes on 1 string. So we move it. The most logical thing to do is to play the D string open. Alrighty! Now we have our G Major Triad. G B D
```-----------
-----------
-----------
--0--------
--2--------
--3--------```
Now, you may have seen an extended form of this chord like this
```--3-------
--3-------
--0-------
--0-------
--2-------
--3-------```
```---------------------