While watching to some guitar covers I found this chord that looks similar to a power chord. In the cover the guitarist played it on the second and fourth fret. It looks like this:
Images generated with chordgenerator.
I want to know how this chord is called. I also want to know how the system behind is working so I am able to write tabs myself with it. It looks like it has a similar system like the power chords with the root note. Where could I place this chord so it sounds good?
Furthermore, is it possible to play this with three notes like a "big powerchord". With big power chord I mean like in this sequence:
|-------------------|
|-------------------|
|-------3-------6---|
|---3---3---6---6---|
|---3---1---6---4---|
|---1-------4-------|