“We live in the age of the unreal. Russian bots pose as right-wing online activists, phishing scams as Facebook quizzes and potential Tinder hook-ups, Muppets as world leaders. In music too, we have boybands hailed as indie saviours, solo laptop fiddlers sounding like apocalyptic orchestras and ‘transangels’, R&B and rap acts trying to emulate self-improving AIs. From Sgt Pepper and Ziggy Stardust ”