Heiða Árnadóttir performs works especially written for her by composers Þóranna Dögg Björnsdóttir, Birgit Djupedal, Guðmundur Steinn Gunnarsson and Þórunn Björnsdóttir. These compositions travel to the self, through doubt, uncertainty, complications, simplicity and negotiations.
Ragnheiður (Heiða) Árnadóttir graduated from the Music Conservatorium in Reykjavík and continued her studies at the Royal Conservatory in The Hague, Netherlands, where she graduated with a Masters degree in singing. Heiða has performed extensively in Iceland and Europe in music varying from modern music to folk and jazz music. Heiða organizes and makes lyrics for her band Mógil which has released four CDs, "Ró" 2008, “Í stillunni hljómar” 2011, “Korriró” 2015 and Aðventa “2019”. Heiða is artist in residence for Dark Music Days 2020-2022.