The most anticipated event of this year’s Umbria festival in Italy was the performance by Keith Jarrett. Most tickets had sold out when it was announced that he was on the festival bill and at £56 a seat it shows that his popularity in Italy is a strong as ever. But rather than welcoming the audience to the concert he chose to unleash a torrent of abuse at those in the audience foolish enough to bring cameras or phones with them. "I don't speak Italian, but get someone who speaks English t...