thumb|Lefébure-Wély, 1860
Louis-James Alfred Lefébure-Wély (13 November 1817 – 31 December 1869) was a French organist and composer. He played a major role in the development of the French symphonic organ style and was closely associated with the organ builder Aristide Cavaillé-Coll, inaugurating many new Cavaillé-Coll organs.
Biography
Lefébure-Wély was born in Paris, son of an organist. He studied with his father, Isaac-François-Antoine Lefebvre (1756–1831), who had changed his name to Antoine Lefébure-Wely after being appointed organist of the church of Saint-Roch in the 1st arrondissement. In the manuscript of an unpublished Mass by his father is a note: