“Maybe later,” would likely have been my response if someone had asked me if I wanted to hear “Somewhere Over the Rainbow.” But that’s what I heard this morning when I started the car. I didn’t turn it off, I didn’t change the station, and tonight I spent 99 cents at iTunes. It’s been around for 14 years and the singer is no longer living, but one of the advantages of being a music illiterate is that I have more opportunities for discovery. The singer has the kind of voice you might expect from someone named Israel Kamakawiwo’ole and the ukulele gives some assurance that you aren’t in Oz anymore.