In 1886 he received a scholarship and studied music at Professor Heinrich von Herzogenberg at Hochschule für Musik in Berlin from 1886 to 1887.
[3] As a composer, he wrote symphonies, a violin concerto, chamber music, an opera, and more than 200 songs, most in the 1890–1905 period.
His works are seldom performed now, but many musicians were influenced by him, such as Fartein Valen, who studied music under Elling.
[4] [5] Elling is principally known for his extensive work on collecting and recording Norwegian folk music.
He continued a folk music collection across many rural parts of the country: Trøndelag, Gudbrandsdalen, Oppland, Telemark, Setesdal, Valdres and Sunnfjord.