To Kill a (Beloved) Myth!   I realize I've kicked up a minor hornet's nest with my Mockingbird claim. It's all the more confounding when we hear John himself state that he played on it (in more than one interview). And then the possibility of AFM reports having gone missing makes the trail seem even colder.   But here is the strongest proof I have: the AFM sent me the TV exhibition residuals list, of all the musicians who played on the Mockingbird score... and John's name is