Wonder what you guys will make of this. Someone started a thread here of less well known guitarists and I put forward Al McKay. Nobody seconded my vote, so I thought maybe I'm the only fan of his here. Just for those who don't know him here he is doing his thing, mainly known for his groove and rhythm playing, he can play a nice solo as well.
Earth Wind and Fire, Ike & Tina, Wilson Pickett, Isaac Hayes, BB king........
Hope you enjoy.