Obviously the movie inception is a reflection of what reality really is subtly packaged under the cloak of entertainment. So taking into account this new para-dime of reality that this movie explores I conclude that the increased processing power of our inner mind hears music in a much different way than our ears perceive it. Here is a Justin Biebz song slowed down 800% to give you a gimps of how your deepest mind perceives music. http://soundcloud.com/shamantis/j-biebz-u-smile-800-slower
The inner mind operates so quickly that it slows down its perception to the point that it is able to read the energy frequency of the music coming in. This is why happy music makes you feel good. Even if you don't know the words. Your mind is jiving with the energy frequency and getting in tune with the level the music is on.
Now I'll be going through my Disney collection to find the movie that explains how we pick up on each others energy and vibes so well. The wisdom is in there somewhere.