The Echo Nest blog announcement: http://blog.echonest.com/post/78749300941/the-echo-nest-joins-spotify http://blog.echonest.com/post/78749300941/the-echo-nest-

The Echo Nest blog announcement: http://blog.echonest.com/post/78749300941/the-echo-nest-joins-spotify http://blog.echonest.com/post/78749300941/the-echo-nest-join...