Jean Langlais, French organist and composer (d. 1991)
Jean François-Hyacinthe Langlais III (15 February 1907 – 8 May 1991) was a French composer of modern classical music, organist, and improviser. He described himself as "Breton, de foi Catholique" ("Breton, of Catholic faith"). His works include masses and organ music, some based on Gregorian themes, enhanced by polymodal harmonies, as well as music for other forces.