Miller, who was in conversation with former Pink Floyd and Ian Dury manager Andrew King at the event's opening session, said he was still on good terms with the staff at EMI, who bought his label in the early 2000s and recently let him take Mute independent again.

But he said he had realised that while at EMI he was "self censoring a lot".

"It wasn't EMI's fault. I realised when I stopped at EMI how much I hadn't been ...