The stage illuminates, the bass kicks in and your favourite musician appears on stage.

It's an electrifying moment, and one you'll remember for years to come.

But it's become a whole lot easier to relive these moments as more concerts are turned into blockbuster films or livestreamed - for a fee - to fans across the world.

Looked at one way, everyone's a winner. Music lovers get more chances to see their favourite artists perform, and the acts get another potential source of financial support.

But from another angle, it can look like yet another way to squeeze money out of audiences already paying premiums for tickets and merchandise.