Watch the Blues in A online guitar lesson by Joe Dalton from Acoustic Blues Handbook
All we need to play blues in the key of A is a D7 pattern. And, as with the other patterns we’ve learned, it’s very easy to find because we’ve used these chords many times. Your homework is to transpose all of the other ideas from the key of E to the key of A. This will keep you busy and out of trouble. I believe in pointing you in a direction instead of spoon feeding. There is a proverb that says: “Give someone a fish and you feed him for a day; teach someone to fish and you feed him for a lifetime.” Enough said.