Magga was mentored in composition by the Norwegian composer Bjørn Sverre Kristensen for many years. In 2015 she studied music production at Noroff, School of technology and digital media where she found her passion for film music. In 2017 Ann-Mari continued her education in Film music at Lillehammer, where she cooperated both with students from the TV school and the national film school.
Maggas music focuses on timbres and melodies, often in electronic combinations. She has written music for award winning short films with directors such as Ernst De Geer, Petter Holmsen, Anine Wiesner Barg and Liv Mari Ulla Mortensen. “The Culture” directed by Ernst De Geer attended festivals all over the world, won international awards and was nominated for the Amanda award in 2019. Currently she is working on her own composition project “Pre reconciliation” to premiere in October 2023, this she is doing in a combination with composing for films.