Camille Saint-Saens (1835-1921), while most well-known for his chamber and orchestral works, also composed much for the organ, having himself been appointed organist at both Saint Merri (1853-1857) and Madeleine (1857-1877), the latter post he held for 20 years. He is one of the 19th century's most important composers and performers for the organ, counted together with other greats such as Gigout, Guilmant, and Widor. Saint-Saens wrote MARCHE RELIGIEUSE, Op. 107, for organ in 1897. Reprint edition.