I doubt it very much.

Unless you go into Indian music scales or experiment with quarter tones, everything that has been done in contemporary music has been done.

So why are songwriters so concerned with trying to sound totally original?

Look at the industry at the moment. There are genres, sub-genres and sub-sub-genres all trying to find some originality in the music, and while there are some interesting stuff coming out at the moment what makes it interesting are the different layers and textures on offer not the actual sounds used.

All I'm trying to point out is that the chances of doing something completely original are very small, but not impossible. If you do come up with something completely original congratulations but if not, dont worry.

Always remember that even though a song may not be totally original in its sound it's uniqueness comes from you and you alone. You are the originality behind the song not the song itself.

I remember a mate of mine played a song to me once and all of a sudden I was singing another song to it because it sounded similar. He got very upset and was going to throw the song away and abandon it because of that fact.