You mention the Dead... I need to try to pull up any concert albums... The Dead should be in my wheel house... I tend to like a large share of the genres they are associated with (folk, country rock, bluegrass, blues...) I always found their songs OK, but not really interesting... a few years ago, I had a rental car with Satellite Radio and listened the the Dead channel. and they had a lot of concerts and I liked those much better. I subsequently learned they were a great concert / jam band. From what I heard, I think so too. Need to check it out.