12 Bar Blues Roots Only String 6 and String 5 http://guitarninja.com/wp-content/uploads/01a-12-Bar-Blues-String-6-Roots-Only.mp3 12 Bar Blues Roots Only String 6 http://guitarninja.com/wp-content/uploads/01b-12-Bar-Blues-String-5-Roots-Only.mp3 12 Bar Blues Roots Only String 5