The composers that are remembered are the CLASSICAL composers. Their music is still being performed and will be performed in 100 years, 500 years, whatever.
My tastes changed from the time I was 16 years old.
I also love opera. Not all opera is good but what IS still around is fabulous. If it weren't it wouldn't be performed.
The classical composers also wrote some TERRIBLE music and operas. But those dogs bit the dust a long time ago, as they should have, and what is left is the best of the best.
The only two forms of music I don’t like are jazz and rap. Rap isn’t music, it noise. Oddly enough though I took lesson from one of the premier jazz drummers ever, the late Joe Morello.