Petter, born 1989 in Gothenburg, Sweden, started early to compose music. After studying music at Hvitfeldtska Gymnasiet in Gothenburg, he studied for Per Mårtensson at the Gotland School for Composers. Later, he studied composition for Atli Ingólfsson at the Iceland Academy of the Arts and for Gabriele Manca at Conservatorio ”G.Verdi”, Milan, Italy. Most recently he studied for Karin Rehnqvist at the Swedish Royal College of Music, Stockholm. Initially focusing on instrumental music, in recent years he has shifted some of his energy to vocal and dramatic music. His music has often been performed at concerts and festivals in Sweden, Iceland and Italy. He has collaborated with and written music for, among others, Ensemble Recherche, Swedish Radio Choir, Caput Ensemble, Symphony Orchestra Norrköping, Stockholm Opera College, Kolbeinn Bjarnason, Podium Festival Iceland, Gotlandsmusiken and Nordic Chamber Soloists. Also, he is a long time collaborator of soprano Elísabet Einarsdóttir who has premiered many of Petterʼs pieces.