Jeanne Demessieux, star Dupré pupil and virtuoso wrote a fair amount of music - most of it is not easily playable by normal mortals, except for her lovely collection of 12 Choral Preludes - most of them are quite easy (each seems to have at least one little place needing extra practice, though!)
This piece, a lovely rendition of Adeste Fideles always makes me smile - it's a lovely little cradle song.