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6

Dissonance and Piano Tuning

Lecture no. 6 from the course: How Music and Mathematics Relate

Dissonance and Piano Tuning

Taught by Professor David Kung | 49 min | Categories: The Great Courses Plus Online Mathematics Courses

Dissonance is a discordant sound produced by two or more notes sounding displeasing or rough. The “roughness” is quantifiable as a series of beats—a “wawawa” noise caused by interfering sound waves. Learn how to predict this phenomenon using basic trigonometry. Consider several examples, then discover how to use beats to tune a piano. End with a mathematical coda, proving the beat equation using basic algebra and trigonometry.

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