Centuries later as great as Vivaldi/Bach were in their days is like tossing around Lincoln/Jefferson around.
It can't be done, centuries later.
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...