Watch the Perfect Fourth online guitar lesson by Kai Eckhardt from Atomic Bass: Reactive Intervals
In this variation we are covering exactly the same note, yet the pattern sounds different. That is because we are introducing the inversion at a different place which gives us a pattern of perfect fourths across all four strings. The challenge here is to roll your index finger and your pinky across the strings in such a way as to avoid the notes blending into each other. Tonal center are A, G and F.