In Sometimes a Song, my wife Debra is really behind much of that section of our site. She knows more about popular music than anybody I know, and as she herself has sung much of it and played much of it also on the guitar, and as she grew up listening to it in the home, she has great insights that I could never hope to have, not if I lived another hundred years. If you want to know where the songs come from, what their singers were like, what they meant to the people who first sang them, you can't do better than to read her essays, which I think are the highlight of the week.