Real name: Kajsa Birgitta Abrahamsson

Swedish national fiddler and violinist from Bergsjö in Nordanstig municipality, born Andersson, 6 May 1959.

Her folk music domicile is Nordanstig in northern Hälsingland. She has been awarded the Gold medal.

O’tôrgs-Kaisa tells about and plays songs by musicians such as Hultkläppen, Pusten, Katrina Lundstedt, Kolmo-Olle, Nisse Östman, Per Majström and Gammelbo-Lars Andersson. Her main instrument is the violin, but she also plays the accordion and nyckelharpa.

She is a member of the group Låta Myttje.