Music Tuned to 440 Hz Versus 432 Hz and the Health Effects: A Double-blind Cross-over Pilot Study
This page documents how this source is reused across Claim by Claim. A source can support, challenge, qualify or contextualize different claims; appearing here does not imply endorsement of every linked proposition.
Evidence roles describe what this source helps establish inside each Investigation. They are local to that use, not permanent labels attached to the publication itself.
Published 2020 corrigendum reverses the tiredness comparison: improvement in tiredness was greater after 440-Hz music, not 432-Hz music.
Qualifies
Several small human studies report short-term differences between 432 Hz and 440 Hz tuning conditions in autonomic, anxiety or sleep outcomes, supporting further study of narrow frequency-specific effects.
Challenges
The frequency-specific studies measure narrow short-term outcomes rather than disease cure, DNA repair or broad biological healing, so their endpoints do not establish the stronger viral claim.