"Think back over the soundtrack to your life. Those songs you heard in grade school and church, on first dates and at dances, in college dorms and convertibles, at weddings and graduations — it's all part of your musical makeup."

"And today, the mysterious power of music seems to be even more personal and pervasive. With help from iPods, downloads, clouds and smartphones, we can literally "soundtrack" our lives any time, anywhere."

"But why do we like what we like? What makes us choose Kanye over Coltrane, Mahler over Madonna, or Youssou N'Dour over Yeasayer? And what does it say about us, personally?"