The schedule of the international Menuhin Competition for young violinists has been hit by the effects of the volcanic eruption in Iceland. With many northern European countries forced to close their airspace because of the danger that the cloud of volcanic ash poses to jet engines, the travel plans of some competitors and jurors have been thrown into chaos. This Friday's opening concert in Oslo is set to go ahead as planned, but the first round of the competition has been provisionally moved back a day to Sunday 18 April.