I attended Eric Clapton's Crossroads Guitar Festival in Dallas last night. I was in my seat every minute of the 8 hour, 15 minute extravaganza...not even a rest room break (o/t, not unusual after my usual shift at UPS, where I shed a few pounds every day).
I'm kind of embarrassed to say that I have been locked into a musical time warp, staying in the 50s, 60s, and 70s as far as my music listening goes. That was one of the reasons why I bought a ticket, to see if there were any musicians I wasn't familiar with.
Acts that really jumped out at me were James Bay, Robert Randolph, Jonny Lang and Tedeschi-Trucks, and I was reacquainted with Robert Cray, Los Lobos, and Doyle Bramhall II.
It was undoubtedly the best concert I ever attended, the multitude and musical diversity of the performers was extraordinary. Throw in Bill Murray as the emcee of the event, and it added up to a spectacular evening of entertainment.
I'm about a decade behind you. I would say that most of my music library is from the 1964-1985 period with a smattering of 90s grunge and alternative. Thanks to YouTube, I've been discovering old concerts of my favorite bands of that era as well as rare tracks.