Chapter 3 Mechanical Music

Build machines that make music—including some that play themselves!


When you start to invent your own instruments from everyday objects, your brain begins to pay extra attention to ordinary sounds. If you’ve ever heard the boing of a door stopper spring when you hit it with your shoe, the scritch scritch of an old pair of scissors, or the knock knock knock of a window shade in the breeze and thought “That sounds like the beginning of a song!” then you’ll enjoy the projects in this chapter.

Some of the musical ...

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