So here's some of my thinking for the verse lead, scale wise anyway -
Dm-------------------D Aeolian - D E F G A Bb C
Fmaj7----F Ionian - F G A Bb C D E
Bo7--B Locrainian Add Ab - B C D E F G Ab A
Bb--------------Bb Lydian - Bb C D E F G A
A7---A Phrygian Add C# A Bb C C# D E F G
Dm as above
F as above
C---------------C Mixolydian - C D E F G A Bb
So the Dm, F, Bb & C are all the same notes and the others have only minor differences that generally highlight the chord tones.
I'm not even touching on chromatics though there's a bunch of possibilities.
The scale over the Bo7 is what I settled on but I've messed around with a bunch of different looks. I'm certainly not saying my thinking here is THE deal with this. As a matter of fact it's more from my own ear than any palpable study of jg's approach.
I'm doing a decent amount of bending from a half step back of the targeted tone. Gives a nice mournful flavor.
The end of the first verse to beginning of the 2nd I'm bending the C note to a C# over the A7, thus the 3rd of A, and then bending another half step for a whole step bend to begin the 2nd verse to the D note for the Dm.
In case you didn't catch it my timing in the second verse from the Bb to the A is a beat or so early. And the tempo is a bit rushed, hell from just about right off the bat - I think I get to the Bo7 a hair early. Oh well.
Good thing I bought that metronome that I haven't used yet about a month ago.