Watch the Single String Connections online guitar lesson by Jason Loughlin from Blues Connections: Minor
Review the scale formula and play it up and down on every string in the keys of A, D, and E since these are the corresponding scales to our i, iv, and v chords. Whenever you're working on a new key, be sure to review the scales you'll need on single strings. Don't be driven by the pattern and shut your brain off. Be aware of what scale degree you're playing and how far it is from the next one.