Watch the Study 6: Country Groove online guitar lesson by Carl Verheyen from S.W.A.T Improvisation

The Mixolydian mode used here is something that works for a lot of country songs but it also has a huge place in the blues. Practice getting those scales up to speed, but also try to think of them as dominant 7th scales instead of relating them back to the mother major keys. This is the first step towards leaving all that theory behind and just improvising.