Watch the Idlewild 2 online guitar lesson by Joe Deloro from Blues Rock Road Trip 2
Phrase 2 we'll add a harmony part to Phrase 1 and take a step further into the Allman Brothers sound with harmonized lead guitars. However, instead of the usual approach of having one guitar play the same line a third higher (e.g. E with G above), we’ll go with something a bit jazzier, 4ths.
Phrase 2 uses the most basic approach to harmony. It's called, “parallel” since it's notes are always the same interval (4ths) away from the lower part. Of course, playing both phrases together creates a fatter T&V sound than the original and is often used to build interest by playing first without the harmony and then with it (“stacking”). Finally, the upper part is on the second string here instead of the first to keep the tone uniform with the low part and allow a bit more sustain.