SRC — Music & Frequency
Folder: 05 - SOURCE MATERIAL Supporting: Music & Frequency
Music and Brain — Primary Research
Salimpoor et al. (2011) “Anatomically Distinct Dopamine Release During Anticipation and Experience of Peak Emotion to Music” Nature Neuroscience Key finding: Music producing chills causes dopamine release in nucleus accumbens — same pathway as food and sex.
Hole et al. (2015) “Music as an Aid for Postoperative Recovery in Adults: A Systematic Review and Meta-Analysis” The Lancet — 73 randomised controlled trials reviewed. Key finding: Music reduces pain, anxiety, and pain medication need before, during, and after surgery. verified
432 Hz vs 440 Hz
Verdi’s 432 Hz Campaign Giuseppe Verdi formally petitioned the Italian government in 1884 to adopt A=432 Hz as the national standard. The Italian government briefly adopted it. Historical documentation — referenced in multiple musicological sources.
ISO 16:1975 The international standard setting concert pitch at A=440 Hz. https://www.iso.org/standard/3601.html
432 Hz Studies — Status Small studies suggesting lower heart rate and anxiety at 432 Hz vs 440 Hz exist but sample sizes are limited. Larger peer reviewed replication is needed before verified tag applies. Current tag: credible → investigate
Solfeggio Frequencies — Status
Rife (2011) — 528 Hz / ethanol in snails study. Does not confirm DNA repair in humans. All specific therapeutic claims for Solfeggio frequencies remain at #investigate pending stronger research. Do not cite as verified.
Entrainment
Clayton, M., Sager, R. & Will, U. (2005) “In Time With the Music: The Concept of Entrainment and Its Significance for Ethnomusicology” European Meetings in Ethnomusicology Foundational academic paper on musical entrainment of biological rhythms.
Still To Source
- Peer reviewed study directly comparing physiological response to identical music at 432 Hz vs 440 Hz with adequate sample size — does not yet exist at scale investigate
- Neuroimaging studies on corpus callosum development in musicians — Schlaug et al. is a starting point
- Binaural beats EEG studies — multiple exist, need curation