Research inspiration for music composition

I want to create my own music composition for my video. I know what type of music that I want to look at for inspiration. The music that I have looked at tell a story from the lyrics being sang. I am going to apply this technique to my own music design.


Tracks that I have listened to:

http://www.youtube.com/watch?v=hCoViK0G43Y

http://www.youtube.com/watch?v=zzHR0IErM60

http://www.youtube.com/watch?v=j2WWrupMBAE

http://www.youtube.com/watch?v=5w9E5yJDOwM


There are loads of music artists that tell a story through lyrics and emotional feeling from a repetitive melody and the choice of the right instruments to create an emotional sound.  

I want to achieve a similar technique using poem words for lyrics and develop my own music track. When I listen to a music track it can change how I am feeling. So an approach of using emotional lyrics and a repetitive melody will hopefully achieve the outcome I want.