Watch the Lesson 3 online guitar lesson by David Hamburger from Fingerstyle Blues Handbook 1

Throughout these lessons, we're assigning a specific picking finger to each string: index for the third string, middle for the second string, ring for the first string. If you're playing a three-note chord on top, as in lesson 2, you have to do this, but it's a good idea even when you're picking single notes on top, as this lesson. Having a specific finger playing each string simplifies your right hand choices and your fingers' muscle memory becomes part of how you memorize each tune. >> Reference Source: Dave van Ronk (