Edvard Grieg, composer and pianist The classical music of the romantic composers Edvard Grieg, Rikard Nordraak and Johan Svendsen is internationally known, as is the modern music of Arne Nordheim. Norway's classical performers include Leif Ove Andsnes, one of the world's more famous pianists; Truls Mørk, an outstanding cellist; and the great Wagnerian soprano Kirsten Flagstad.