Debussy's Clair de Lune (or "Moonlight") is a beautifully expressive piece of music, with a dreamy quality making it ideally suited for wedding and funeral services, whether held in a church or elsewhere. Because of its mix of long sustained and shorter notes, it is best played on a piano but experience organists can play it with care. Download the piano sheet music, midi and mp3 files.
Suite: consisting of a series of pieces in the same or related keys. In the 17th/18th century these pieces were dances. Here is a more modern one by Claude Debussy - Suite Bergamasque - Around 8:22 you will find the 3rd part, Claire du Lune, which you may recognize as it is one of his most famous pieces.