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@@ -422,18 +422,18 @@ and the fifth (3:2) is blue. These ratios seem to correspond to the photoreceptors in the human retina, which are sensitive to wavelengths of light in three different ranges: long, medium, and short. These - ranges are perceived as "red, green, and blue" in the brain; our + ranges are perceived as "red, green, and blue" in the brain, yet our mind's eye sees a continuous cycle of color that loops back on itself. </p> <p> - The musical circle of fifths, derived from these simple proportions, - can be studied in more detail in this program's Pythagorean scale - mode. Similar notes can be found by color and compared. One can easily - hear how stacked fifths overshoot the octave by finding two far-apart - red notes and playing both at once, which makes them beat against each - other. This interval is the "syntonic comma" which is averaged out in - various keyboard tuning systems. + The musical circle of fifths, derived from repeatedly stacking the 3:2 + proportion, can be studied in more detail in this program's + Pythagorean scale mode. Similar notes can be found by color and + compared. One can easily hear how stacked fifths overshoot the octave + by finding two far-apart red notes and playing both at once, which + makes them beat against each other. This interval is the "syntonic + comma" which is averaged out in various keyboard tuning systems. </p> <p> |