This was inspired by a quote from Amanda Cox that everything sounds better with "Explosions in the Sky" playing, even black and white boxes. :) https://www.youtube.com/watch?v=ha9LA3rYD9g#t=441
Note that howler is a js package for playing music. Info is here: http://goldfirestudios.com/blog/104/howler.js-Modern-Web-Audio-Javascript-Library
Modified http://d3js.org/d3.v3.min.js to a secure url
https://d3js.org/d3.v3.min.js