MOS inflection: Difference between revisions
→MOS vs MODMOS vs MOS inflection: correction |
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If we take a MOS scale, and adjust one or more its notes up or down by some ''other'' consistent interval besides a chroma, we instead obtain an inflected MOS scale. This process is called '''MOS inflection'''. | If we take a MOS scale, and adjust one or more its notes up or down by some ''other'' consistent interval besides a chroma, we instead obtain an inflected MOS scale. This process is called '''MOS inflection'''. | ||
A scale being a MODMOS guarantees a number of useful characteristics, most importantly [[epimorphism]]. A MOS inflection ''might'' sometimes have these properties, but it often doesn't. Compared to a MODMOS, it also typically preserves less of the 'character' of the original MOS scale, which could be useful or detrimental depending on one’s goals in making the scale. | |||
== Types of MOS inflection == | == Types of MOS inflection == | ||
{{Idiosyncratic terms|The terms for the different kinds of MOS inflection, proposed by [[Budjarn Lambeth]]}} | |||
It’s likely that many more types could be conceived of. Feel free to edit this page and add any which you find useful or interesting. | It’s likely that many more types could be conceived of. Feel free to edit this page and add any which you find useful or interesting. | ||
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This will result in a scale which is a subset of some larger MOS scale with the same generator and period. | This will result in a scale which is a subset of some larger MOS scale with the same generator and period. | ||
Compared to other | Compared to other types of MOS inflection, robust MOS inflection more closely preserves the harmonic flavors of the original MOS, though it still doesn’t preserve them as well as a MODMOS would. | ||
For example, if you take this [[Negri]][8] MOS: | For example, if you take this [[Negri]][8] MOS: | ||
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* 1200.000 | * 1200.000 | ||
Then alter two of its steps by increments of 125.373 [[cents]], and then [[octave reduce]] the result, you get the following robust inflected MOS: | Then alter two of its steps by increments of 125.373 [[cents]], and then [[octave reduction|octave-reduce]] the result, you get the following robust inflected MOS: | ||
* 125.373 | * 125.373 | ||
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Aspirational MOS inflection may be conducted with similar goals to [[well temperament]]: it may be used to blunt the rough edges of an MOS by sanding over one or two of its [[wolf interval]]s. | Aspirational MOS inflection may be conducted with similar goals to [[well temperament]]: it may be used to blunt the rough edges of an MOS by sanding over one or two of its [[wolf interval]]s. | ||
[[Category:MOS scale | [[Category:MOS scale]] | ||