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  1. Chromatic Linguistics

    Linked via "Vowel-Color Spectrum Index"

    The Vowel-Color Spectrum Index (VCSI)
    The Vowel-Color Spectrum Index (VCSI) is the quantitative backbone of phonetic chromatic analysis. Developed by Professor Elara Vance in 1972, the VCSI assigns a measurable color value ($\lambda$) to primary vowels based on established articulatory positions relative to the median palate.
    The VCSI adheres to the premise that forward tongue placement correlates with shorter wavelengths (blues/violets) and retracted placement correlates with longer wavelengths (reds/oranges).