character: Ms. Melody
topic: Understanding Frequency and Sound Waves
grade: 9
subject: Music
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character: Mr. Harmon
topic: The Science of Sound: Waves and Frequency
grade: 9
subject: Music
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character: Professor Note
topic: How Frequency Affects Musical Notes
grade: 9
subject: Music
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character: Soundwave Sam
topic: Introduction to Sound Waves and Their Properties
grade: 9
subject: Music
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