What is the classical tune in the background of Babe (the movie).?!

What is the classical tune in the background of Babe (the movie).?

This has been doing my head in for days. It is when the pig is ill and the farmer sings to it. I know it is a classical tune, but who composed it and what is it called.
Sounds very similar to Evonne Keeley (sp?) "if I had words".

Thanks in advance.

3 days ago
Thank you both! I just googled saint saens and there it was: " If I had words" based on "Camille saint saens symphony no 3 in C minor avec orgue".

Top marks to both of you but I can only choose one best answer, so it will have to be the most complete, but my very best wishes to you both.

"Symphony No. 3 'Organ', 4th Movement"
Music by Camille Saint-Saëns