Jay Z's music streaming site isn't about helping musicians -- it's about making more money

Jay Z held a star-studded press conference in New York yesterday to promote the relaunch of his streaming site Tidal. But it didn't go down well with fans who are angry over the maximum monthly charge of £19.99 for the service. There was a lot of speculation before the press conference about what Jay Z would announce. New albums from Jay Z, Kanye West and Rihanna were all rumoured. Another smart guess came from the hashtag that musicians were using to tweet about Tidal: #TIDALforALL. Maybe Jay ...