Mumford & Sons banjo player Winston Marshal has recently confessed that their attitude is not really Rock ‘n’ Roll, but a little more on the soft side – as if that was needed from a band who has a banjo player. “We’re not, like, hard men. We’re emotional. We’re not rock’n’roll. If AC/DC apologized, that’d be the end of their career. But someone doesn’t say hello to us and we’re like, ‘I cannot believe the…