Watch the Phrygian: Dom. Over II-V-I online guitar lesson by Kenny Wessel from Shades of Jazz
Lets trade phrases on the II-V-I progression. The vamp is: 1 bar of A-7, 1 bar of D7b9b13, and 2 bars of Gmaj7. I'll play for 8 bars (twice through the progression) and then you can practice blowing over the vamp for 8 bars. First we'll work on moving the dorian idea up 3 frets (to become a D Phrygian idea) and then resolving to Gmajor. Then we'll try to voice lead the 3 scales in position when the chords change.