What Britpop originally was – a way of reclaiming an identity for gaudy, magpieish British music from the grey blanket of grunge, then slapped on the cover of Select magazine in April 1993 – was not what it became. Of course it wasn’t: the essence of every pop movement is altered by exposure, when it becomes about its consumers’ interpretations rather than its creators’ intentions. Punk went from art school kids seeking to shock to blokes with mohicans drinking cider outside shopping centres. Britpop went from something arch and wry and awkward to beery singalongs with arms around shoulders. In that transformation, though, Britpop did give new vigour to a strand of conservatism that has long existed in pop music – the one that believes there is A Proper Way To Do Things.