I have a lot of respect for Tom Wright. I don't always agree with him and I think his books could be shorter, but in general I think he is a fine scholar and human being. But his recent attempts at singing seems a bit much. A few months back I saw a video of him signing a Dylan song. And now this - he is singing a song about Genesis to the the tune of the Beatles' "Yesterday."
Listen for yourself. It takes a bit for him to get going.