It would be interesting to know how key changes have fared in music outside of Billboard. I got exposed to a lot of key changes during lowest ebbs in the 2000s because I didn't care about what was on those charts in high school. At that point I could just use iTunes to find other music and with that whatever was on the Billboard pop charts just wasn't as intriguing.
Just looking at the pop charts here
It would be interesting to know how key changes have fared in music outside of Billboard. I got exposed to a lot of key changes during lowest ebbs in the 2000s because I didn't care about what was on those charts in high school. At that point I could just use iTunes to find other music and with that whatever was on the Billboard pop charts just wasn't as intriguing.