No offence taken, and thank you so much for the reply. I am starting to transliterate the lyrics but this will very difficult. The Portuguese language seems to have some peculiar sounds in it that make it very different from Spanish.

Do you speak Portuguese? Would you like a MP3 copy of the song to see if it sounds familiar? I'm certain that this song is a traditional folk ballad but I just need some confirmation. I can make a small sound clip and email it to you or perhaps post it here.

Thanks again!