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• 04:13, 13 February 2026 Vector talk contribs created page Third (Created page with "''For intervals with a denominator of 3, see Perfect fourth and 5/3.'' A '''third''' is an interval that spans, or could reasonably span, two steps of the 7-form. Thirds generally range from about 260 to 440 cents, and interordinal intervals from 240-260 and 440-460 cents can also function as thirds. The most significant harmonic feature of thirds is that two thirds of opposite qualities stack to a perfect fifth and form a tertian triad. Therefore, x...") Tag: Visual edit