Agnes Ida Pettersen (born 1981) is a Norwegian composer. She mainly writes for acoustic instruments, but also works in electronic music, installations and music for the stage.
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She studied composition at the Norwegian Academy of Music with Bjørn Kruse and Henrik Hellstenius as her primary teachers. Since 2011, she has worked as a freelance composer based in Oslo. Her work In b was performed at the Nordic Music Days festival in 2015. Her piece I det stille // Epilog has been recorded by Telemark kammerorkester and performed by Det norske kammerorkester. She has also worked with Det Norske Blåseebsemble, Felicia Kaijser, Ingvild Maria Mehus and NOSO Sinfonietta.
