The industry has provided Hargreaves with evidence, which it believes demonstrates a working copyright system that has allowed online services to innovate and grow.

There are 72 legal digital music services in the UK - double the amount in the US. And in 2010, digital sales were worth nearly £350m, more than a quarter of recorded music revenue.

Hargreaves, however, has taken a different line: "I think most people who are consumers, which is nearly everyone, has got some criticism ...