I do not know the story of Ibsen's play, or of the original fairytale it is based on. When Z was a child loving the music he asked the story, and I made one up based on Grieg's titles -- so there's a mountain king with a hall -- and the feel of the music. Mine is a cheerful traditional fairytale in which the main character is definitely likeable and the main event is a game of Grandmother's Footsteps with trolls.