character: Dr. Smith
topic: The Physics of Musical Instruments
grade: 9
subject: Physics
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character: Ms. Johnson
topic: Sound Waves and Frequency
grade: 9
subject: Physics
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character: Mr. Thompson
topic: Resonance and Instrument Design
grade: 9
subject: Physics
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character: Mrs. Garcia
topic: The Science of Sound Production
grade: 9
subject: Physics
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