Text: "Coincident action of two intermittently tuned tones of slightly different frequency, the resultant polarity thereof being determined by the third or Dominant frequency, stream or flow. Beats are those tones or vibrations which "move one within another." Only through beats can one note be the ROOT of another...a Beat is the third point of the Triangle. Beats are either negative, negative-negative, negative-positive or positive, positive-positive, positive-negative vibrations - this polarity is determined when the Beat tone is either a SUMMATION or a DIFFERENCE tone. Beats are harsh when they exceed 33 per second - they become inaudible above 132 beats per second."

See Also: ACOUSTICS § 17, 18; DIFFERENCE TONES, ROOT, KEYNOTE, LAW OF SUPERPOSITION, SUMMATION TONES, LAW OF TRIANGLE, HARMONIC & INHARMONIC, OVERTONE, MAGNETOACOUSTIC RESONANCE, POWER OF HARMONICS

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