caspersvapors wrote:are triads what I just described?
for chords like Bm, C#m or B and Bb I still make a barre, just wondering for a chord like G or F if that other technique has any pluses
Triad comes from it's derivative: three. A triad is any chord that has 3 notes in it, and the barre chord you described one among many many triads found on the neck. Any major or minor chord (straight up major or minor, not 7ths or anything like that) are triads. Take a look at the G barre chord you described above, and beside it, I've put the actual notes you are playing. You'll notice, even though you are barring and strumming 6 strings, you are only playing 3 notes:
As far as I know, a triad is just a chord with 3 notes, but I'm sure (and hope) someone else here could elaborate more on this. These notes also happen to be your I-iii-V (one, three, five) in the major scale, and rest assured that's no coinsidence. Your major chord is made up of the I-iii-V, in this case your chord is G, and the notes that make up a G chord, no matter where you play it on the neck, are G (I), B (iii), & D (V).
I'm still digesting this whole 'guitar theory' thing, but that's the best I can describe it as of today.
Hope that helps.
Same goes for a minor chord. Let's take Gm, for example:
Still only 3 notes. The "mother" scale of the minor modes is Aeolian. The I-iii-V of Aeolian is G (I), Bb (iii), and D again (V). Learning the 7 modes (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, & Locrian) has really helped me understand this HUGE concept, but I still have a looooooooong way to go. But I love every minute of it, even when I think I hate it.