Watch the A minor Blues: 1st Chorus online guitar lesson by Robben Ford from Riff Revolution
So getting into our first chorus, I kind of play the same thing that I played in the intro. It's sort of like the B.B. King position - he's always doing this kind of thing. He hovers around the root note on the B string in the key of A, which puts your hand in the proper position to plays the blues. There's some Eric Clapton here, too.