Altho scientifically controversial - if we study carefully - it does appear there is significant agreement in the literature (references below) about an actual correlation between musical key signatures and the glandular areas or chakras which are energized by specific notes.
To make a relationship between heart frequencies and music notes, we were searching for the model that could best fit the results we get while making slow breath training practices.
We were convinced that the effect of slow breath training practices should induce some kind of energy circle inside the body.
We convert the actual Heart beats per minute as displayed in the HRV (low frequencies of the heart)- to calculate a musical fundamental or dominant key signature for your heart. Then using multiple sources in the literature which agree- we convert that key signature to show which of your chakras are most energized by the 'heart music'.
While testing different qualities of relationship between music notes and chakras, we found that we could animate the movement circuit between the nadii's , Ida and Pingara- by displaying the chakras energized in sequence by your heart's musical key.
This model is defined and used by two different authors and was based on two differents kind of approaches to define it:
The nadis are well knowed for those who practice yoga. Their challenge is to move energy through the nadis to feed their physical, mental, and spiritual development.
The nadis are our energetic irrigation system.
The Sanskrit word nadi means “flow,” “motion,” or “vibration.”
The fundamental nature of a nadi is to flow, to find inside the body the path of least resistance and nourish everything in its path.
This is the most common way to display Ida & Pingala nadis.
a book from Tony CERON, each chakra is related to a musical note.
This approach of Tony CERON is related to alchemy and planets.
The same relationship between chakras and music notes is used by Michel LARROCHE in its
"CELLULAR ANALYSIS AND REINFORMATION" practice (using musical tuning forks).
Heart Rate Variations induced by a slow breath practice
at 5 cycles/Minute
Relationship between music notes & frequencies
(1) Tony CERON
Théorie et pratique de Spagythérapie énergétique Editions Col du FEU (1999)
(2) Michel LARROCHE
Mes cellules se souviennent... Guy Tredaniel Editeur (2000)
(3) Michel LARROCHE
Et si mes cellules savaient apprendre ? De la mémoire cellulaire à l'intelligence cellulaire
Guy Tredaniel Editeur (2007)