Direct link: http://labrosa.ee.columbia.edu/millionsong/ http://labrosa.ee.columbia.edu/millionsong/ If you need an API as an alternative http://developer.echo

Direct link: http://labrosa.ee.columbia.edu/millionsong/ http://labrosa.ee.columbia.edu/millionsong/ If you need an API as an alternative http://developer.echonest.com/docs/v4/ http://developer.echonest.com/docs/v4/ That's the EchoNest API and that's where the database was collected from. This is very interesting data and just looking at it has sent me into a ponder-mode as to what to do with it. Also, an interesting note on the EchoNest site about the API usage: The Echo Nest's APIs are for non-commercial purposes only. If you are a lone developer selling advertising that is barely covering your running costs, we consider that non-commercial