This area is about sound: what resonance is, what happens when you use your voice, and what music research does and doesn’t show. It’s also where you’ll find honest looks at popular ideas such as 432 Hz and the Solfeggio tones, with the evidence for each one clearly labelled.
What is resonance?
- What resonance really is: from playground swings to singing bowls: natural frequency, damping and standing waves in plain words.
Sound and voice
- Liu Zi Jue: where the Six Healing Sounds come from: the earliest text, its uncertain date and the 2003 standard form.
- Vowels and formants: the acoustics of the six sounds: how your mouth shapes each sound, from hiss to vowel.
- Feeling your own voice: bone conduction and chest vibration: why your voice sounds and feels different from the inside.
- Binaural beats: do brainwaves entrain?: what the beat is, and where the brainwave claims go too far.
Music and tone
- Music and stress: what 100+ trials show: what many trials of music listening and stress measures found.
- 432 Hz vs 440 Hz: history, myths and evidence: why concert pitch is 440 Hz, and what the few small studies on 432 Hz tested.
- Solfeggio frequencies: where they come from and what the evidence says: from Guido d’Arezzo to a 1999 book, and what the few small studies tested.
- The Chinese five tones and the Five Phases: gong, shang, jue, zhi, yu and how classical texts link them to the Five Phases.
- Chills and being moved: music and reward: musical pleasure and the brain’s reward regions.
- Tempo, rhythm and breath, and the stillness between sounds: what a few small studies saw in breathing during music.
- Tuning forks: from the doctor’s bag to the practice room: how they vibrate, how doctors use them, and the claims beyond that.