The first production in Oslo’s eagerly anticipated new opera house will be a ballet by Norwegian choreographer Ingun Bjørnsgaard, with newly commissioned string orchestra scores from Rolf Wallin and Henrik Hellstenius. Wallin’s piece is entitled Urban Bestiary, and alternates real world sounds of the city with abstract string music, while Hellstenius’s Places of Sound includes sections for tenor and soprano, with text taken from the opera Croesus by German Baroque composer Reinhard Keizer.