acoustics

Frequency & Music

What Is Hertz (Hz)? — A 10-Minute Introduction to Frequency

What is Hz? The simple unit "how many times per second something vibrates" underlies music, Solfeggio, brain waves, and electromagnetic waves. An entry guide accessible to middle schoolers.
2026.06.12
Frequency & Music
Frequency & Music

Overtones — The Science of Why Music Feels Rich

What are overtones, and why do they make a violin sound different from a recorder playing the same pitch? A gentle introduction to the acoustic phenomenon behind singing bowls, throat singing, and Solfeggio depth.
2026.05.27
Frequency & Music