It's so hard to find any area that isn't already tread upon. Let alone tread upon; it's pretty difficult to even find one that hasn't already been worn out. Be it anything; the things I write, the things I want to enhance, the new tunes that a composers create, the new storylines that authors come up with; they're already there. Even the thoughts we have, the things we feel- and songs are the proof of it. There have been too many people thriving for excellence in this world to let that goal be anything near of unique. Everyone wants to excel, and everyone wants to dream big.
And well, maybe this should be the end of this post, because who knows; maybe this sort of thing has been written before.