Guitar's development

One thing that struck me from the first chapter of Song of Solomon was the young boy who knew how to spell "Admissions." It wasn't only his intelligence, though-- the name Guitar alone would be enough to spark my curiosity (how DID he get that name, anyway?). And the description... "cat-eyed"..."five or six years old"... wow. When I was five, I didnt know the difference between the words "mat" and "mate." The way Guitar addresses his Grandma is also interesting. They do not see the white nurse as deserving more respect than they do, nor do they pretend to. I wish that we received more information about his background, because "Granny" seems to be Pilate-esque in her aura of power. It is obvious that Guitar respects her immensely, at leats at his young age. He takes great interest in Pilate's singing, solely because his grandma smiles at her. And thats the only mention of Guitar until the next chapter, several years later. Again, the respect for Granny shows through, when he and his brother take her words as very important, that "a nigger in business is a terrible thing to see." Interesting that the same man who is willing to send him to the streets is the father of Milkman, his best friend. Another thing I noticed was that this willingness shown in chapter 2 to evict the Bains family is similar to when he evicts Porter in chapter 10. I think that the combination of these two incidents makes Guitar strongly dislike Macon Jr, and reminds him of the woman he admired so dearly.
I still am at a loss when it comes to finding a relationship between his youth and his decision to become involved with the Seven Days. Of course, he witnessed the death of his predecessor, but I do not see his membership as a result of this. One can tell from his attitude as a child that he is much more serious that Milkman. Spelling rather than peeing on his sister, worrying about where to live rather than assuming others will provide for him.  Still, the only allusion to his future "job" that i notice when reading about Guitar as a child is when his eyes are referred to as "gashes," a term giving a violent image associated with him.
Throughout his teens, however, Guitar seems to be an older Milkman. When introducing Milkman to Pilate for the first time, Guitar seems particularly cheeky; at least, until the conversation turns to death. It is not irrational to assume that he was naturally more carefree as a teen than as an older man or young, impressionable boy. Still, it is hard for me to see the same person in the Guitar who asks whether or not Pilate really has a belly button and the Guitar who tries to kill Milkman out of paranoia. Hopefully we get to learn more about Guitar as the book goes on, because I find him one of the most intriguing characters we have encountered all semester.