Watch the Mucho Muting online guitar lesson by Brad Carlton from Chord Studies: Slash Chords Vol. 1
More of the same progression-wise here, but again we are going to be voicing them differently. Let the tip of your index finger mute the D string for the Am chord or alternatively you could hybrid pick it. You'll need to employ one of these two techniques throughout the progression in order to let that low A ring. All we are doing is playing the top three strings of our six string root barre forms. Our last chord is simply your typical D chord, with that low E in the bass.