According to
The Oxford Companion to Music, Olof Wilhelm Peterson-Berger was Swedish composer who was born in Ullanger and died in Oestersund aged seventy-five. He studied in Sweden and Germany and then devoted himself to writing music in a definitely Swedish idiom dramatic, orchestral, chamber, and vocal. He also took some rank as a poet, served as music critic, translated works of Wagner into Swedish, and directed the Wagner performances at the Stockholm opera house.