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ἁρμονική

Ἦθος ἀνθρώπῳ δαίμων -> A man's character is his fate
Heraclitus, fr. B 119 Diels

Russian (Dvoretsky)

ἁρμονική: ἡ (sc. τέχνη) учение о гармонии, теория музыки Arst.