Watch the 12-bar Chicago shuffle in A online guitar lesson by David Hamburger from Blues Guitar For Beginners

Once you start getting your chords to sound cleanly, a big part of getting a good sound out of the electric guitar is learning how to use palm muting to control all that fabulous trebly goodness that's pouring out of your axe. When you choke off the strings by the bridge, you can control how ringing or muffled your strings sound by choosing how little or how much to bear down on the strings as you pick them.