Doc - Trying to answer a few of your many questions.
1. There is no connection between Blues and Bluegrass. Blues has a foundation in Spirituals, which came across the pond with some of our forced immigrants (slaves). There are a lot of kinds of blues - Memphis, Chicago, and the Mississippi Delta all have their own distinctive styles. Then there are performers who have their own styles, never to be matched, B.B. King and John Lee Hooker lead the pack there. I have an album by Buddy Guy (a living legend in Blues himself) doing a John Lee Hooker tribute album. They put some session talk on the album where Buddy Guy was talking about how you can't play John Lee Hooker music and try to put any kind of rhythm to it but his own.
Bluegrass on the other hand has its roots mostly in Scottish Highland reels and jigs. Totally different music, totally different roots, totally different sound.
2. As far as Chicago, I'm no expert but have been there a few times. I've never been scared in Chicago the way I've been scared in New York City. I've walked the underground alone at night and not been worried. In New York City, I've been in places that scared me with three other people during the daylight. For a time, my brother-in-law lived with me. He loves the show Cops. Well, one time when I was travelling to Los Angeles, I got lost trying to get back to the airport. I found myself driving through a neighborhood I had seen FREQUENTLY on Cops. And I needed directions. So, in my business suit, I got out of the rental car at a convenience store and walked in. The convenience store side was covered in gang graffiti. I looked around and found a map and took it to the counter. The guy said, "You look lost." "Yeah. I needed a map." About that time three tough looking guys came from loitering near the coffee machines towards me. One say, "Oh man, that's hard when you don't know where you are." Another says, "Where you trying to get?" The third says, "Let's look at that map." Here, I figured I was getting ready to be on the news, and these tough fellows every one of them were wanting to help me. They gave me excellent directions, drew them out on the map, wished me well, and tried to send me out the door without paying for the maps. I had do INSIST on paying for the maps, plus I bought them each a cup of coffee for their trouble. The cops only see the bad stuff in neighborhoods like that. You and I have been blessed to see the good stuff.
- Zurf