Slide or bottleneck
Two of our featured guitarists (Muddy and Elmore) use slide as the basis of their technique. On old acoustics, noise wasn’t particularly a problem and in fact extraneous notes and noises probably added to the overall effect. With electric guitars you need to think about damping unwanted notes, and using the slide on your second or third finger allows you to damp behind it with the first or first and second fingers. Keeping your picking hand palm close to the bridge will also allow extra damping, particularly of the lower strings. Adding vibrato is vital if you are to create a strong and authentic sound. Many players anchor their fretting hand’s thumb on the back of the neck and use it as a pivot to generate vibrato. Don’t be coy with it either - aggression is the order of the day!