Wild Stringdom w/ Dream Theater's John Petrucci - The Power of Three

This video is bonus content related to the March 2014 issue of Guitar World. For the full range of interviews, features, tabs and more, pick up the new issue on newsstands now, or in our online store:
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This month, I'm going to demonstrate how one can utilize simple triadic shapes and patterns in order to imply more complex and varied chord qualities.

I find this to be a very cool and useful improvisational tool, because you can apply it to playing over either a chord progression that you want to outline melodically or over a static pedal tone or one-chord vamp over which you want to superimpose shifting harmonic colors.

Let's begin by outlining, and then combining, simple major and minor triads. FIGURES 1 and 2 illustrate the notes of a G major triad—G B D—played in seventh position.