By her own admission, Sigríður Níelsdóttir has many personas. Half Danish, half German, she has spent most of her life in Iceland – and has an ongoing love affair with Brazil. But it was a gift of a hi-fi system that brought about Nielsdottir’s latest persona – and changed the direction of her life. The 70-year-old began to pick out tunes on an electric piano and used an array of sounds from objects around her home, to record more than 600 songs onto cassettes. Seven years later she had released 59 albums – and became an adored cult figure in the Icelandic music scene. Using mostly Super-8 and 16mm film, three of her musician apprentices have spent eight years developing this eclectic tribute. Music legends from Sigur Ros and Mum weigh in on Nielsdottir’s artistic influence, in a suitably kitsch portrait of the artist as an old woman.