crown paints

[Imcurious]

I'm curious about a the music that was featured in this advert. It is something that has haunted me for ages. As all adverts it only last a minute or so but the music is great. As far as I can remember it was shown in the 1970's or 80's. I can't be any more precise than that. I've tried all the means I can to trace this advert, all to no avail.
All the search engines I've used only seem to go back as far as the 90's for Crown Paints.
I would also like to know if the piece was written purely for the advert (unlikely as it such an impressive piece and only lasts a minute or so) or is part of larger work and who wrote it if possible.
thanks in anticipation

[deloupie]

If it was the ad for odourless paint it could be La Regazza Dalla Pelle Di Luna by Piero Umiliani but this may have been for Dulux.