Cultural prime-time doesn't mean beach music top list. There are many subcultures and they have their own prime-time music that people outside of that group never heard of.

And people who happen to enjoy music that was truly never prime-time should thank the parents of the musicians who sponsored the free music creation. It wasn't tech or platforms that enabled it, it was VC/Angel investor money and will vanish as soon as the money dries out.

"It wasn't tech or platforms that enabled it, it was VC/Angel investor money"

For plenty of music that I listed to neither was in play (for example https://pl.wikipedia.org/wiki/Piosenka_turystyczna )