Watch the Carl's Shuffle 4 online guitar lesson by TrueFire from Play Blues Guitar 10: Advanced Soloing Approaches
Carl's Shuffle 4 - Solo 2: Introduction is a video guitar lesson presented by Carl Verheyen and is sourced from S.W.A.T. Blues.
Listen to the slide licks that I've duplicated without using a slide. Some of my favorite players have been slide players and I've studied each one of them and mined their styles for signature licks.