I was just curious if any of you have played with others using harmony? I just discovered this way of playing and am going to try it out. It's amazing what you can pick up when you get out of a rut and look to other styles and ideas. Incidently, a song just got added to the list we've been playing and it uses mostly power chords. I thought that was kinda ironic being that I just asked about those here not too long ago.