copyrights & samples.

ok, ive searched this particualr question and can't find an answer. I got copyright forms and a bunch of beats...Some i have used samples some i have not. This is my question, If you gotta get your music copy written before you can send it to labels and the labels will usually clear a sample for you (at a price)...then how do you copywrite something with a sample on it? Their is no reason to clear a sample for demo purpose...but you can't demo a track to labels without the copywrite...im lost on this, any suggestions...

thanks

Buy the book.

The logical option would be either to not sample or sample something that is not vital to a particular song. For example, I have sampled chord progressions from the beginning songs then, chopped the chords into individual samples and played them in a different order. There would be no reason have to clear them that way.