https://homorehabilis.bandcamp.com/album/soul-symbiosis
Our project in progress contains structural compositions based on 7-to-23-limit Just Intonation, derived from the harmonic analysis of bioacoustic data.
The 7-limit Just Intonation Blues series are created by extracting the chord progression from a work played with the Chikuzen Biwa, a semi-traditional Japanese instrument, that tuned in a custom ratio 9:12:14:21.
These pieces explore the Just Intonation system as a universal language of Nature based on the harmonics. Birds are singing on Just Intonation limited by the prime number 11 or more higher around 23 by listening the natural harmonics of own voice or fellow's.
Since Just Intonation system using these higher-order prime numbers includes intervals that approximate 12-tone Equal Temperament (for example 17/16, 19/16), TET can be seen as a transitional tuning system that attempted to imitate these natural pitches but failed to achieve it.
And this project is based on the Phase Transition Theory due to Desargue's Theoremical Projection between the Musical Right-angled Triangles through the natural harmonic series.
#Birds #Nature #Music #Microtonal #JustIntonation #NaturalLanguage