Last year I became interested in identifying the determinants of good music. Why were some years better than others, why were some countries better than others at producing good recording artists? So far I only managed to examine the time dimension, as the data I had covered mostly the US and the UK. I found that music was better in high-growth years and in high- (but not too high) inflation years.
Now Patrick Adler, a grad student in Urban Planning at UCLA, gathered locational data on the 2012 Coachella acts (Coachella is now one of the biggest music festivals in the US).
Richard Florida, writing for The Atlantic, from which I have taken these graphs, writes, "the world of popular music is spiky. More than two-thirds of Coachella’s international roster of acts (71 percent) hail from just 14 metros. And four in 10 (43 percent) come from the “big three” of London, LA, or New York."