How much is a First Class stamp? can clindamycin be used to treat an ear infection The lecture takes place within a rich visual context. Dressed in a chocolate-coloured velvet suit, Callow roams a set which looks like the lumber-room of Wagner’s life and mind. A backdrop projects a vast photograph of Wagner’s face, immortalised in marble in Bayreuth, which intermittently melts into video. The designers Robin Don, Rick Fisher and Duncan McLean have done a good job on this.