Gael Liardon (1973) is a French organist and music teacher.
He is organist of Eglise de Villamont in Lausanne and a teacher at the music academy of Lausanne.
There is not very much else of him on the internet. His own website just sums up his present and past activities.
I was searching for some preludes when I came across his on IMSLP. His small preludes are written as little fugues in classical style and perfect if you are looking for something you can use in a service and play at sight.
They are quite nice.
He published quite a lot of them on IMSLP.
Here is the link:
http://imslp.org/wiki/Category:Liardon,_Gael
Since I could not find his name on the concert hall, I assumed he is unknown there.
So I played four of his prelude-fugues twice, every time with a different registration.
Herr Jesu Christ, dich zu uns wend
Liebster Jesu, wir sind hier
Lobet den Herren
Auf meinen lieben Gott
It is certainly not great stuff, but nice and usable in many situations.