EchonestEx 

Elixir wrapper for Echonest API (V4) http://developer.echonest.com/docs/v4
Installation
If available in Hex, the package can be installed as:
Add echonest_ex to your list of dependencies in
mix.exs:def deps do [{:echonest_ex, "~> 0.0.1"}] end
Ensure echonest_ex is started before your application:
def application do [applications: [:echonest_ex]] end