Great idea! I actually had no clue how to do the color scale, and I ended up doing it with 5 different colors based on quantile. Did a small write up with my

Great idea! I actually had no clue how to do the color scale, and I ended up doing it with 5 different colors based on quantile. Did a small write up with my thoughts about it: http://mts.io/2014/05/07/spotify-pricing-index/ http://mts.io/2014/05/07/spotify-pricing-index/ Will revisit the map with these color changes.