Time tends to weed out the bad stuff. I have a book which is a collection made in the 1880s of favorite songs from the 19th century. Very few of them made the cut into the 20th....
There is good stuff that gets lost along the way, but for the most part, it is essense of good stuff.
A lot of what I like to listen to that is 20th century will be forgotten in another 50 years. We already see the sieving process happening on oldies stations...
Not often enough. The same Stones crap still goes 24/7 on many oldies stations. The 'B' side of sooo-o-o-o-o much great stuff from previous eras never is played.
But it will. This history will come about in our lifetimes.
The left won't understand when a re-invented 'swing band' circa the 40's tops the charts...and the raunchy, pierced, tattooed, and the talentless does not understand why.
Just food for thought.