Watch the The Whole Fretboard: Mixolydian Mode online guitar lesson by Robbie Calvo from Power Play: Dominant
I found these slow blues solos to be a real challenge, add to the mix having the entire fretboard at one's disposal and it becomes an open horizon of note choices and lines. Improvising a solo over the Mixolydian changes at this tempo is tricky because you may start to lose which bar of each solo you are in. I tried to play laid back, simple lines that sit in the pocket rather than play faster more complex melodies. I hope you like what I played and find some inspiration in the approach.