Planning music

I have searched some music that is available on YouTube. These sounds are ideal to use as sound is a convention when providing the genre of a film. As our film is a thriller we must find a sound tracks that can create tension, suspense, enigma, excitement and thrill all in one sound track. I think these songs follow the sound conventions in films:

http://www.youtube.com/watch?v=opJqsHP22qk&feature=related

http://www.youtube.com/watch?v=a9Lij4JOh2Y&feature=related

http://www.youtube.com/watch?v=wwNAwkulMF0  I like this the most and think this would be really effective.

http://www.youtube.com/watch?v=x0sbZ_YIelw  

http://www.youtube.com/watch?v=k3dwSK5ybbk&feature

        Sound is important to make our audience happy. This is because people go to the cinema to watch a thriller in order to feel enigma, suspense, excitement, thrill and tension. Thus music plays a key element in doing this.