Watch the Rotator online guitar lesson by Brad Carlton from Chord Studies: Rock and Pop Progressions Vol. 2
In this progression you will be playing basically an A and a G chord but we'll use some voice leading to color the chords. Really focus on bringing out the D to A melody on the first and second strings between chords one and two. When trying to get into position for the G chord, adjust your thumb and rotate slightly on your second finger to minimize movement.