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2. Isochronic tones - Wikipedia

   en.wikipedia.org/wiki/Isochronic_tones

   Isochronic tones can quantitatively be distinguished by both the frequency or pitch of the tone itself, and by the interval or frequency of repetition of the tone. While listening to isochronic tones is a technique often employed in the theoretical practice of brainwave entrainment, reliable scientific research into the effectiveness of this ...

3. Scientific pitch - Wikipedia

   en.wikipedia.org/wiki/Scientific_pitch

   Scientific pitch, also known as philosophical pitch, Sauveur pitch or Verdi tuning, is an absolute concert pitch standard which is based on middle C (C 4) being set to 256 Hz rather than approximately 261.63 Hz, [1] making it approximately 31.77 cents lower than the common A440 pitch standard.

4. Solfège - Wikipedia

   en.wikipedia.org/wiki/Solfège

   Italian "solfeggio" and English/French "solfège" derive from the names of two of the syllables used: sol and fa.[2] [3]The generic term "solmization", referring to any system of denoting pitches of a musical scale by syllables, including those used in India and Japan as well as solfège, comes from French solmisation, from the Latin solfège syllables sol and mi.

5. Pythagorean tuning - Wikipedia

   en.wikipedia.org/wiki/Pythagorean_tuning

   This succession of eleven 3:2 intervals spans across a wide range of frequency (on a piano keyboard, it encompasses 77 keys). Since notes differing in frequency by a factor of 2 are perceived as similar and given the same name ( octave equivalence ), it is customary to divide or multiply the frequencies of some of these notes by 2 or by a power ...

6. Just intonation - Wikipedia

   en.wikipedia.org/wiki/Just_intonation

   Each step consists of a multiplication of the previous pitch by 2 ⁄ 3 (descending fifth), 3 ⁄ 2 (ascending fifth), or their inversions (3 ⁄ 4 or 4 ⁄ 3). Between the enharmonic notes at both ends of this sequence is a pitch ratio of ⁠ 3 12 / 2 19 ⁠ = ⁠ 531441 / 524288 ⁠, or about 23 cents, known as the Pythagorean comma. To ...

7. AOL

   search.aol.com

   The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

8. Cymatics - Wikipedia

   en.wikipedia.org/wiki/Cymatics

   [3] The German musician and physicist Ernst Chladni noticed in the eighteenth century that the modes of vibration of a membrane or a plate can be observed by sprinkling the vibrating surface with a fine dust (e.g., lycopodium powder, flour or fine sand). The powder moves due to the vibration and accumulates progressively in points of the ...

9. Could This Overlooked Organ Hold The Key To Living Longer?

   www.aol.com/could-overlooked-organ-hold-key...

   Scientists still know very little about the ovaries, but new research and renewed interest suggests unlocking its secrets could help women life longer.