If you have the CMT cable channel, I recommend their miniseries "Sun Records", about Sam Phillips and Sun Studio in Memphis.
The first few episodes have been plodding in spots, but I'm looking forward to this week's episode, looks like Elvis recording his first record there.
To stand on the spot where these giants recorded their first records, I couldn't help but feel in awe of the place. The tour at Sun Studio is really interesting, my boys enjoyed it, too, including my 6 YO grandson.
There was some things on display once at Mud Island that had to do with Memphis. One item was the control board Sam Phillips used to make all those records. It was a little 5 track about 2 feet wide.