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This is Scientific American 60-Second Science. I'm Karen Hopkin. This'll just take a minute.

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If you're a fan of the Beatles, you no doubt know that "She Loves You" came before "All You Need Is Love".

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But what about "Help!" or "Yellow Submarine" or "I am the Walrus"?

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You may not know which came first, but researchers from Lawrence Technological University in Michigan created an algorithm that does.

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By analyzing the evolving structure of the Beatles' music, the computer program was able to correctly place the Fab Four's albums in chronological order.

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The work is in the journal Pattern Recognition Letters.

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The researchers initially produced the algorithm to catalogue whale songs.

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And they figured what worked for killer whales should also work for the lads from Liverpool.

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The program converts audio data into a visual spectrogram, an image it then evaluates for texture, shape, and pattern.

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Based on this analysis, the algorithm could tell that "Please Please Me" was from the early days and "She Came In through the Bathroom Window" came near the end.

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It even correctly estimated that songs from Let It Be were recorded before those on Abbey Road, although Abbey Road was released first.

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The algorithm also worked for the albums of Queen, U2, and ABBA.

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But the computer came up short on Taylor Swift, whose tunes thus far are too similar to sort.

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Of course, her style could still change over time.

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"Time Is on My Side," by Bonnie Raitt and Irma Thomas.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.

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