B4 — seventh tone

486.00 Hz · 243:128

The brow point carries the 243:128 Pythagorean ratio, shown as 486 Hz from the 256 Hz base. Its placement is a diagrammatic step between the upper octave and the trunk, not a source-attested correspondence between B4, vision, or the forehead.

C5 — octave frameB4 — seventh toneB4 — seventh toneA4 — sixth toneG4 — fifth toneF4 — fourth toneE4 — third toneD4 — second tone

Point 2 of 7 in Pythagorean Harmonic Body

Cross-tradition overlaps

No overlapping points are registered for this point.

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Sources

Iamblichus, Life of Pythagoras (primary_canonical)

Chapters XV and XXV discuss musical education, purification, and the ordering of the soul; chapter XXVI recounts the discovery of harmonic ratios and identifies diapason, diapente, and diatessaron. The text supports music-and-ratio doctrine, not a seven-point body coordinate map.

Walter Burkert, Lore and Science in Ancient Pythagoreanism (scholarly_modern)

Burkert provides modern historical analysis of Pythagorean number, music, cosmology, and the limits of later doxographic accounts; it is used here to keep the body projection distinct from ancient evidence.

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