Possible Music downloaded to use within my media trailer

Above is a video I had made in windows movie maker, it contains snipets of the music i downloaded from website  http://incompetech.com/m/c/royalty-free/. These sound files inspired me to create my short film trailer, although I did not use all of them I felt it would be a good idea to give examples of all in order to present the reasons why I used some and not others.

http://www.youtube.com/watch?v=R30IvsTdhXA