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