Watch the Two Top online guitar lesson by TrueFire from Play Acoustic Guitar 4: Rhythm Principles
Two Top - Playalong is a video guitar lesson presented by Brad Carlton and is sourced from Chord Studies: Open String Chords Vol. 1.
In this first Open String Study, you'll learn 4 chords that utilize open strings to enhance their sonority; E major, A add9, C# m7 and B add4. Notice how all four chords use the same two open strings on top. Also note how your third and fourth fingers serve as guide fingers for each of the voicings.