News Fiendishly complex formula created to uphold credibility of the album News Lyrics also added to package News Len Blavatnik pumps more money into Spotify rival News Centralised playlists will allow customers to identify tracks Analysis Subscription streaming generates £251m in 2015 Analysis YouTube's income is around nine times the size of Pandora's Analysis Universal buying, Sony selling and a wealth of streaming possibilities... News Like Streamers Do: Long-awaited catalogue finally arrives on streaming services