I can say with some certainty that The Doors, Led Zeppelin, Deep Purple, will all still have meaning in fifty years...heck Mick Jagger will still be performingBut the fluff like Taylor Swift and dubstep....were almost irrelevant yesterday.
I swore when I was in my teens and 20s that I would always stay current with music because I cringed each time my parents and grandparents extoiled the music of their generations. Somehow over the years I generally find what's popular today to not be half as interesting as the great rock n' roll produced during the 60s and 70s. There's lots of great music out there and I do my best to keep listening to new things (although not what you'd call popular charts stuff), but I always go back to the early groups. Now I've turned into a grandparent who extoils the music of my generation. Ha!
I'm the same way ! In our defense though music is much more fragmented these days and new music is harder to discover. I don't listen to regular radio stations anymore so I don't get exposed much to new artists. I suppose I could select a station on Spotify or Google Music to listen to that features new music but I never think about doing that !
I do listen to new stuff on Spotify but have to say it doesn't hold my attention most of the time. With all these services it's easy to have the music we love whenever we want it, but I miss is driving around with the radio on and the serendipity of your favorite song coming on.