Nielsen was both composer and conductor. From 1922 to 1956 he was Kapellmeister at Det Norske Teatret in Oslo. As a composer, he has written incidental music, vocal music, orchestral works and film music.
- 2 Bibliography
- 3 external link
- Fjellsangen 1959
- Zodiacs from the film music to "Bårdsen Gjest", for voice and Orchestra