Watch the DG's Boogie: Solo 2 online guitar lesson by Steve Trovato from Voodoo Blues

I set the solo up with a phrase or motive. I’ll change the top note
for each chord to outline the arpeggio for the chord.

I’ll use G# as the top
note for the E chord. G# of course is the 3rd of E. I use G natural as the top note for the A7 chord
which is the 7th degree of an A7 arpeggio. For the B7 chord I’ll use F# as my top note. Once again
I’ve chosen a chord tone.