These days we are used to comedians taking us on trips abroad. But it is rare for anyone to take us back to their homeland and declare that when they left it, 20 years ago, they hated it.That, though, is what made Reginald D. Hunter’s Songs of the South (from 21 February) so interesting. Born only a year after Martin Luther King was shot, Hunter came to Britain to study at Rada, discovered stand-up comedy, and never went back. Surveying the white musical culture of Tennessee and Kentucky, it is perhaps not surprising that he felt ill at ease.A big man, dreadlocked and travelling in a gigantic red convertible, he attracted attention. “Those are nice people,” he said, after some locals had shouted in his direction. “I hate my own sense of prejudice, but I’m gla