...just a few minor observations:

Once a type of music is created, it never goes away. On any Saturday in the US, you can listen to live Western Swing, Doo Wop, Bluegrass, Rock'n'Roll, Trad Jazz, etc.

Most music critics want to elevate records that they feel changed music. The fact that most of these records changed it for the worse does not seem to matter. More profanity, more asinine politics, more sex, more drugs, more race hatred, more recording tricks. In short, these records are usually more full of crap.

Continuing, long-term artists such as Joan Baez, Willie Nelson, John Denver, Waylon Jennings, Linda Ronstadt, Judy Collins, Joni Mitchell, Neil Young, Paul Simon and other did some of their best work in the 1980s. Most was an evolution, not a revolution.