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Article
Mocomi & Anibrain Digital Technologies

Mocomi: Types of Musical Instruments

For Students 2nd - 8th
Provides a list of musical instruments and how they work.
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Website
University of Michigan

University of Michigan: Mike Schmidt's Trombone Studio

For Students 9th - 10th
Provides a brief overview of the trombone. It describes a little bit of its history and references known trombone players.