Daniel Levitin, author of “This is Your Brain on Music” has a new book entitled “The World in Six Songs.” In it, he says there are just six types of song in all music throughout the ages, and they help tell a story of music and human evolution.

Those six types are:

- Friendship/Social bonding

- Joy

- Comfort

- Knowledge

- Religion

- Love

To hear more about his findings, including some interesting studies on the body’s chemical reaction to music, listen to this ON POINT interview on NPR online. In it, Daniel Levitin shares findings about music and the brain.