Watch the Idlewild 1 online guitar lesson by Joe Deloro from Blues Rock Road Trip 2
Phrase 1 is a 4 bar T&V phrase loosely based on Duane Allman’s solo. Notice how the figures (2 and 3 note groupings) primarily range between the 5 and the b7 (E and G) of the mode. Also, see how ascending and descending between them maintains musical logic and unity. Finally, the main idea of the variation is to increase phrase tension by intensifying the rhythm and adding a few new notes. This approach is somewhat typical of jazz and creates more tension than emphasizing the lower chord tones (A and C, the 1 and b3).
For other examples of Dorian solos and vamps, check out Miles Davis’s, All Blues, and So What, John Coltrane’s, Impressions, The Byrd’s, 8 Miles High, and The Door’s, Light My Fire.