Text: The ratios above are taken directly from a plot of a right triangle created using the rules of QA. It is interesting to note that of the nine ratios six are Perfect Intervals (1, 2, and 3 par numbers) the remaining three are all Major Intervals (5 par numbers). This demonstrates that the triangle is indeed a unit of strength. Unison 1:1 Octave 2:1 Perfect Fifth 3:2 Major Third 5:4 Perfect Fourth 4:3 Major Tenth 5:2 Perfect Twelfth 3:1 Major Sixth 5:3 Double Octave 4:1

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