Purerhua

Here is a picture of my pūrerehua:
Pūrerehua are a traditional Māori musical instrument. They are usually made using stone, bone, or wood, but I made mine using cardboard. The design on mine shows… black cardboard
When I spun my pūrerehua fast, the pitch was lower because it was smaller
When I spun my pūrerehua slowly, the pitch was lower because… i hid a smaller string
Sound waves can have different frequencies and amplitude. The amplitude of a wave changes it’s logarithmic, while the frequency and wavelength change it’s pitch. To make a loud, high pitch sound with my pūrerehua, I would make it out of wood

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