FAQ: <a href="http://static.echonest.com/BohemianRhapsichord/faq.html" rel="nofollow">http://static.echonest.com/BohemianRhapsichord/faq.html</a><p>Blog post: <a href="http://musicmachinery.com/2011/11/06/bohemian-rhapsichord-a-music-hack-day-hack/" rel="nofollow">http://musicmachinery.com/2011/11/06/bohemian-rhapsichord-a-...</a>