Music analysis: Are alternative music bands having to evolve to survive?

From Royal Blood embracing dance influences to Nothing But Thieves experimenting with synth-pop and electronic production, many of modern rock's biggest names sound very different to the bands that first made them famous.

As genre boundaries continue to blur and listening habits evolve, Music News Blitz's Jessica Spilsbury explores whether rock bands are changing simply because they want to - or because they have to.