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  2. List of musical scales and modes - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_scales_and...

    Download as PDF; Printable version; ... 12 — — — Delta scale ... Quarter tone scale: Quarter tone scale C. Play ⓘ 1 1 ...

  3. 12 equal temperament - Wikipedia

    en.wikipedia.org/wiki/12_equal_temperament

    12-tone equal temperament chromatic scale on C, one full octave ascending, notated only with sharps. Play ascending and descending ⓘ. 12 equal temperament (12-ET) [a] is the musical system that divides the octave into 12 parts, all of which are equally tempered (equally spaced) on a logarithmic scale, with a ratio equal to the 12th root of 2 (≈ 1.05946).

  4. Equal temperament - Wikipedia

    en.wikipedia.org/wiki/Equal_temperament

    12 tone equal temperament chromatic scale on C, one full octave ascending, notated only with sharps. Play ascending and descending ⓘ. An equal temperament is a musical temperament or tuning system that approximates just intervals by dividing an octave (or other interval) into steps such that the ratio of the frequencies of any adjacent pair of notes is the same.

  5. Chromatic scale - Wikipedia

    en.wikipedia.org/wiki/Chromatic_scale

    The chromatic scale is a musical scale with twelve pitches, each a semitone, also known as a half-step, above or below its adjacent pitches. As a result, in 12-tone equal temperament (the most common tuning in Western music), the chromatic scale covers all 12 of the available pitches. Thus, there is only one chromatic scale.

  6. Chromatic circle - Wikipedia

    en.wikipedia.org/wiki/Chromatic_circle

    The circle of fifths in 12-tone equal temperament drawn within the chromatic circle as a star dodecagon [1] For any positive integer N , one can represent all of the equal-tempered pitch classes of N -tone equal temperament by the cyclic group of order N , or equivalently, the residue classes modulo twelve, Z/NZ.

  7. Phone companies haven't notified most victims of Chinese data ...

    www.aol.com/news/most-victims-chinese-phone-data...

    The vast majority of people whose call records have been stolen by Chinese hackers have not been notified, according to industry sources, and there is no indication that most affected people will ...

  8. Piano key frequencies - Wikipedia

    en.wikipedia.org/wiki/Piano_key_frequencies

    This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th key, the fifth A (called A 4), tuned to 440 Hz (referred to as A440). [1] [2] Every octave is made of twelve steps called semitones.

  9. 10 Vintage Salt and Pepper Shakers That Are Surprisingly Valuable

    www.aol.com/10-vintage-salt-pepper-shakers...

    January 6, 2025 at 12:10 PM. ourfinds / ebay. Step into any antique or thrift store across the country and you’re sure to stumble upon a section devoted to vintage salt and pepper shakers.