The Math Behind Guitar Chords
If you play a guitar this might be interesting...
Key Terms: Trigonometric, Frequency, Coordinate Plane.
Purpose: To explain how sound waves determine the shape of chords on a guitar.
IntroductionSound waves are represented by an oscillating curve. They can be approximated by trigonometric functions. The sound produced by each note on a guitar produces a frequency that can be graphed in a coordinate plane.