Ever wondered why music gives us the chills? Or perhaps why the "chill factor" doesn't seem to exist when listening to the likes of OutKast, Beastie Boys, and Busta Rhymes? Science has the answer.

Apparently, the composers have a hand in creating chill-inducing sounds. And all it takes is a subtle change in note. Just like words, music elicits several emotions from the listener. But there are key moments that will have you covered in goose bumps in no time:

• When a symphony turns from loud to quiet
• Upon entry of a solo voice or instrument
• When two singers have contrasting voices