Wave goodbye to Tidal?

Of the 99 problems Jay-Z does have, you can be fairly sure that his streaming service Tidal will be one of the biggest. Not only has it been performing below expectations since its lavish launch, with uptake disappointingly low, it's now set to be deprived of the music of a whole swathe of artists due to label demands for payment. Most embarrassingly, among those whose music may become out of bounds is Jay-Z's wife Beyonce...