Apple challenges Spotify

Apple is once again preparing to shake up the way people listen to music. After almost single-handedly creating the legal download market a decade ago, the company is now planning to bundle Beats music, a monthly subscription, into its iOS operating system. About 500m people own apple iPhones and iPads - so this has big implications for the music business. Robert Cookson talks to Matthew Garrahan about what this means for competitors like Spotify.