This thread is 7 years old, but if anyone else finds it through a google search, maybe my contribution will help.
As stated here & elsewhere, Jerry plays G major over the part of the song with lyrics, but a lot (most?) of his soloing on this tune is in D mixolydian (the notes of G major, played from D through D).
Jerry switches to D Dorian over the instrumental part at the end of the song (comprised of alternating 4:4 measures of Dmin and 3:4 measures of C, G, D2). Dorian is like minor and mixo grafted together; starting with Whole step, Half step, Whole Step, Whole Step, ending with Whole Step, Half Step, Whole Step. It can sound like either minor or major, depending on what notes you emphasize. It's a great scale to get creative with.
|