one more thought to add to this line of reasoning:

If you have a way to find out the average age of first time home buyers, then zero in on the year that age graduated from high school and pick a hit song from that year.

Home ownership fuels a lot of related spending... furniture, curtains, dishes, etc etc. My guess is that Nashville trends are driven at least partly by advertising revenue

https://www.dropbox.com/sh/ey71h8ep047758h/AAC12jNM0Hz9Q8zsh5iDeqNHa?dl=0