@frogman
When I was studying poetry with Gary Snyder back in the mid-sixties, we had a discussion about why poets no longer wrote in rhyme and meter. He talked about artists tapping into the music of their society. He quoted an Arab saying, "When a music of a society dies, the society dies." The implication is that the music of the society is the foundation of the society. As an artist, one needs to understand their society's music and tap into it.
I read about Rachmaninoff being upset that he was writing Romantic music in the twentieth century alongside "modern" composers like Stravinsky. Rachmaninoff was a great composer, I think, and I have read music critics say that he did incorporate modern elements into his music. The same story with Sibelius who is one of my favorite composers, despite the fact that he wrote in the late Romantic style while Stravinsky and other modern composers were changing the structure of music.
Here is an absolutely beautiful piece of music by Sibelius
https://www.youtube.com/watch?v=w5xJAOlXdUI