Music has been a powerful influence in every culture throughout human history. And our own culture is no exception.

Just think for a moment about how music is woven into our daily lives...someone sings the national anthem before sporting events; "Christmas songs" play in almost every store during the holiday season; movie soundtracks cause our hearts to beat faster, or bring us to tears.

This undeniable power of music - its power to influence our emotions - is just one of the things that makes it such a fascinating subject to study.