character: Professor Smith
topic: Frequency Patterns in Music
grade: 9
subject: Physics
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character: Dr. Emily Carter
topic: Sound Waves and Their Properties
grade: 9
subject: Physics
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character: Mr. Jason Lee
topic: Harmonics and Overtones in Music
grade: 9
subject: Physics
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character: Ms. Laura Chen
topic: The Physics of Musical Instruments
grade: 9
subject: Physics
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