When Don McLean released a seven-minute song called "American Pie" in 1971, music fans clamored to decipher all the cultural references and deeper meaning in the lyrics. I once received a tract that claimed it was a prophesy about the end of the world. That was nonsense; the song is a history of how American culture changed from the '50s to the '70s as told through music. However, nearly 50 years later, we have a couple of generations of music lovers without the first-hand knowledge of those events. Polyphonic gives us an explainer to make them clear. You can hear the original song in its entirety here. -via Digg