While he originally studied theology, he attended the Copenhagen Conservatory from 1873 to 1876 and was taught by music theorist Johann Christian Gebauer.
[2] As part of these reform efforts, Laub rewrote several Danish-language hymns and sequences by poets including N. F. S.
[4] In 1922, with Carl Nielsen, Oluf Ring, and Thorvald Aagaard, Laub published Folkehøjskolens melodibog, a song collection that contained some of his secular compositions.
[2] Though Laub was often criticized during his lifetime, and his hymns were not widely adopted by congregations, church musician's opinions began to shift over the years.
The Danish Hymn Society was founded in 1922 to spread his ideas;[3] this movement, called "Laubianismen," has retained influence into the 2000s.