Watch the King Albert online guitar lesson by Jeff McErlain from 50 Blues Guitar Licks You MUST Know
This is some Albert King magic for you. He was big on working the 3rd of the I7 chord. Is he playing the b3 or natural 3? The answer is yes. He is playing both, it takes time to perfect this idea of nailing the natural 3rd with a bend but use your ears and practice it A LOT! I cannot stress enough the influence Albert King's playing had on just about every guitar player to pick up and plug in.