hey soad welcome to wiichat! I'm being nice, but i think system of a down is terrible. They use two chords, hey i'm all for simplicity but that really sucks. They use two dif pitches to go all long with thier two chords. So pretty much the song goes like this...ababababa(a being a high sound b a lower sound). But i'm not saying i don't like you.
sorry for getting off topic.