In music theory, is, at its simplest, "a chromatic scale with each tone written in manifold notation". Relatedly, the enharmonic scale is, "an [imaginary imaginary] gradual progression by quarter tones," or any, "musical musical] scale proceeding by quarter tones". More properly dieses or 'divisions', nonexistent on modern keyboards and originating in the diminished seventh chord.
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- In music theory, is, at its simplest, "a chromatic scale with each tone written in manifold notation". Relatedly, the enharmonic scale is, "an [imaginary imaginary] gradual progression by quarter tones," or any, "musical musical] scale proceeding by quarter tones". More properly dieses or 'divisions', nonexistent on modern keyboards and originating in the diminished seventh chord. More broadly, an enharmonic scale is a scale in which (using traditional notation) there is no exact equivalence between a sharpened note and the flattened note it is enharmonically related to, such as in the quarter tone scale. As an example, F sharp and G flat are generally equivalent in a chromatic scale, but they would be distinguished in an enharmonic scale. See: musical tuning. Consider a scale constructed through Pythagorean tuning. A Pythagorean scale can be constructed "upwards" by wrapping a chain of perfect fifths around an octave, but it can also be constructed "downwards" by wrapping a chain of perfect fourths around the same octave. By juxtaposing these two slightly different scales, it is possible to create an enharmonic scale. The following Pythagorean scale is enharmonic: In the above scale the following pairs of notes are said to be enharmonic: C♯ and D♭ D♯ and E♭ F♯ and G♭ G♯ and A♭ A♯ and B♭ In this example, natural notes are sharpened by multiplying its frequency ratio by 256:243, and a natural note is flattened by multiplying its ratio by 243:256. A pair of enharmonic notes are separated by a Pythagorean comma, which is equal to 531441:524288. The enharmonic genus is only loosely related to enharmonic scales, being a scale that has a pitch distinction too fine to accommodate with flat and sharp notation. Musical keyboards which distinguish between enharmonic notes are called enharmonic keyboards.
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- In music theory, is, at its simplest, "a chromatic scale with each tone written in manifold notation". Relatedly, the enharmonic scale is, "an [imaginary imaginary] gradual progression by quarter tones," or any, "musical musical] scale proceeding by quarter tones". More properly dieses or 'divisions', nonexistent on modern keyboards and originating in the diminished seventh chord.
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