9/4: Difference between revisions
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'''9/4''', the Pythagorean ninth; two perfect fifths ([[3/2]] * 3/2); the ratio between the 4th and 9th harmonics; one octave above [[9/8]]. | '''9/4''', the Pythagorean ninth; two perfect fifths ([[3/2]] * 3/2); the ratio between the 4th and 9th harmonics; one octave above [[9/8]]. See also [[ed9/4]]. | ||
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