Gabriel Fauré (1845-1924) worked as an organist in Paris, but he was an atheist, then a very unusual combination. He composed his requiem for people to seek comfort in his music, not to dignify God and the religious elements. For instance, the work does not have a Dies-Irae movement because Fauré’s perception of death was different.
The orchestra does also have an unusual combination of instruments. There are two horns, one harp, organ and strings without violins, apart from one solo violin in one movement.
This requiem is one of the most loved ones, and it is performed a lot all around the world.