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This is the song writing lesson.

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Music isa lot like a computer program.

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The written notes and words tell [br]the singer exactly what to do.

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Some parts of music are used over [br]and over again. We call this the chorus.

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In a computer program, the parts of the program [br]used over and over again are called functions.

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When you read song lyrics, and it says the word "chorus", [br]do you sing the word chorus?

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No, you look at the top of the page [br]to see what words make up the chorus.

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In this lesson, you'll learn a silly little song [br]called Little Bunny Foo Foo.

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The song has a chorus that you will sing [br]several times over and over again.

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A function is a piece of code that you [br]can call and use over and over again.

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It makes programming easier [br]and more efficient,

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so you don't have to write out the steps [br]of your function over and over again.

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You can just write it once!