Real name: Ann Britt-Marie Swing

Swedish national fiddler on violin and folk singer living in Delsbo in Hälsingland, born Sving, on 1 September 1952 in Bjuråker, died 17 November 2021.

She was also an educator and developed her own folk music pedagogy. Together with i.a. Thore Härdelin (d.y.) was an important tradition bearer of Dellenbygden's and northern Hälsingland's folk music treasure and she often played for dance and led song courses. Among the role models are the sub-landowners Grubb Anders Jonsson, Sven Härdelin, Näs-Olle, Hjalmar Wallberg, Åströms Olle Persson and Karin Grellson. During parts of the 1970s and 80s, she was part of the Iggesundsgänget.