sends me back to sign in and on second attempt:<p><pre><code> Whoa there!
The request token for this page is invalid. It may have already been used, or expired because it is too old. Please go back to the site or application that sent you here and try again; it was probably just a mistake.</code></pre>
Here is a good article that covers the launch.<p><a href="http://www.theverge.com/2013/4/12/4215994/twitter-music-site-goes-live" rel="nofollow">http://www.theverge.com/2013/4/12/4215994/twitter-music-site...</a><p>But, How is music discovery not solved yet? I thought the best machine-learning experts in the world were working on this problem from a long time.<p>And I feel, twitter can help in music discovering even better with such a service( niche interest graphs)