character: Mr. Lee
topic: Understanding Sound Waves and Frequencies
grade: 9
subject: Music
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character: Ms. Thompson
topic: Introduction to Acoustics and Sound Production
grade: 9
subject: Music
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character: Mr. Harris
topic: The Science of Pitch and Tone in Music
grade: 9
subject: Music
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character: Dr. Wilson
topic: Exploring Vibrations: How Sound Travels
grade: 9
subject: Music
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