Are instrumentals also allowed as "songs"?

If so (these are album titles):

Mike Oldfield - The Songs Of Distant Earth. Full album inspired by the book.
Mike Oldfield - Incantations. Used as soundtrack for BBC's "The Space Movie".
Ad Visser - Sobrietas
Wayne, Wakeman & Peak: Beyond the planets
Vangelis - Albedo 0.39 (don't like a lot from this album, but anyway)

I can also add all tracks from the collector "Script: Electronic and Spatial" (star wars theme, space-magic fly, that stuff).

__________________
To the regular visitor of internet bulletin boards it is clear that it's an excellent idea your parents get to choose your real name.