From "L'Orgue Mystique", office "In Assumptione B.V.M." by famous french organist Charles Tournemire, one of his greatest piece, the final "Paraphrase - Carillon" based on gregorian melodies "Ave Maris Stella" and "Ave Maria".
Sorry, I've arrenge a little for play it on my 2 keyboards organ, without sweller staff and pedal combination pistons!
on youtube: http://www.youtube.com/watch?v=LOPAKQNjLsQ