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Oddmusic

For Students 9th - 10th
You will find many creative and imaginative musical instruments on this site. If you are creating your own instrument you'll be inspired by what others have invented.
Activity
OpenStax

Open Stax: Catherine Schmidt Jones: Percussion Fast and Cheap

For Teachers Pre-K - 1st
Here are some great ideas to assist you in helping your students make their own percussion instruments with little or no money.