ok so basically, all I do right now is randomly put a progression (if you could call it that) of power chords together that sounds good in order to make a song. I'm not even quite sure WHY they sound good, and I hate playing without knowing the theory behind what I'm playing. How do you come up with power chord prgressions? I know that the chord scale is usefull for building prgressions of actual chords, but how is the same thing done with power chords? Right now i just mainly take a select few notes out of the minor scale or minor pentatonic and play them in a decent sounding pattern. I know there's more to it than that. But WHAT?!?!?!