"The Chameleon Guitar -- so named for its ability to mimic different instruments -- is an electric guitar whose body has a separate central section that is removable. This inserted section, the soundboard, can be switched with one made of a different kind of wood, or with a different structural support system, or with one made of a different material altogether. Then, the sound generated by the electronic pickups on that board can be manipulated by a computer to produce the effect of a different size or shape of the resonating chamber."
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