I guess one aspect missing here is weighting more popular songs on that analysis. I assume that the analysis is simply counting every song chords, so a unknown

I guess one aspect missing here is weighting more popular songs on that analysis. I assume that the analysis is simply counting every song chords, so a unknown band you've never heard about has the same impact as The Ramones. I'd like to see the same graph weighted by band popularity using either YouTube or Spotify data.