What sounds good for a basic strumming version is: Up Down Up Mute, Up Down Up Mute (or
the exact opposite) It's best to use Barre Chords so you can easily hit the Percussive
mute. In reality, it's kinda a two-step double version of that, but if you know that, 
you don't need to read this portion.

INTRO/MAIN RIFF

    D D D X