Watch the Duane Allman Style 2: Open E online guitar lesson by TrueFire from Blues Guitar Greatest Hits Vol. 1
Lesson Source: Andy Aledort's Slide Guitar Power
As mentioned, Duane played slide in the key of A on the songs "Trouble No More" and "One Way Out," and this next soloing example is played in the key of A along the lines of what Duane plays on "One Way Out." Notice that the majority of the soloing takes place high on the fretboard, rooted in 17th position, moving between 15th and 17th frets for many of the lines. To play these licks an octave lower, move down the fifth position and move between fifth and third frets in a similar manner.