Rob Kapilow explains why “Over the Rainbow” is still such a beloved song, more than 75 years after it was first heard in the Wizard of Oz – and how the story of that film is encapsulated in Harold Arlen’s melody.

Kapilow also mentions a lovely quote by the lyricist, Yip Harburg: “Words make you think a thought. Music makes you feel a feeling. A song makes you feel a thought.”