https://www.swpsych.org/2005/graesseronmemphis.html
This website seemed to have some good info on it. It is a little outdated because the pyramid is no longer used for games and concerts, we now have the fedex forum that is used.
My suggestion would be to go downtown and walk around for a bit. Peabody place road runs east to west and there are three parking garages on the road that are great to park in. You are then close to beale street and can explore that some. Depending on which garage you park in (there are three peabody parking garages) you can get your parking ticket validated at different locations. These places just stamp your ticket and it knocks a little bit off of the price. The peabody hotel is a nice place to go and look around, there are stores inside. And there is also the "peabody place" that is a sort of mall but just has a couple stores.
There are numerous places downtown to eat. If you want to eat bbq while downtown, rendezvous is famous. It's a neat place and the food is good. But, the best bbq (in my opinion) is at the bbq shop which is east of sco (down madison). If you drive down madison you will see several places to eat. There's Mollie's which is mexican, the memphis pizza co. (excellent), bosco's (nicer place to eat), Huey's (famous for hamburgers and located virtually all across Memphis, you can find this downtown too - it's a favorite with locals and tourists).
If you look at a map you can see that getting from place to place is not complicated. From front street (which runs north to south) you can easily get to mud island, downtown, and sco.
If you have some more time, poplar is a good road to explore on. It's a major road and while closer to downtown doesn't look like much, once you get a little further east there are lots of shops and restaurants. There's also a mall down poplar (Oak Court Mall).
You could also visit Graceland - just to see it if you don't want to pay to go on a tour. It's pretty neat.
Ok, I've rambled enough - anymore questions, just let us know!