To add a video for Kjell Habbestad / You Who Knelt in Darkness Quaking (from the cantata Mi sjel er ei eolsharpe, Op. 90), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Kjell Habbestad / You Who Knelt in Darkness Quaking (from the cantata Mi sjel er ei eolsharpe, Op. 90)