I generally would concur with that (though I would stretch it to include 70-74). It was the era of a lot of iconic R&R, R&B, and pop acts, and especially a golden age for Soul and R&B singers and groups (before R&B got subsumed into disco and club music).
Parochial.
Music from 20s 30s 40s 50s and 60s are great and have been popular.
Only the uneducated are not familiar with them.
The American song book goes back even further. And show tunes? Wow!
To think the world begins and ends with the tastes of the boomers?
As I said. Provincial.
Expanding it to 1970-74 is reasonable — even all the way back to 1965. What I’m finding is that I hear fewer songs from that era — probably due to demographic changes.