Norwegian guitarist, improviser and composer. Fredrik Rasten (born 1988) is based in Oslo and Berlin. Mainly focusing on the musical possibilities within just intonation and related sound phenomena, and in his work he is reaching for an actively listening state wherein to intuitively explore the complexities of tone and harmony. As a performer he is mainly playing acoustic guitar, using real time retuning of the instrument, vocal shadings and different preparations to create warm and fluctuating resonances. His active bands include Oker, Pip, Volumes and Arches.