Period: Difference between revisions
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* The diminished scale (sLsLsLsL) has period 1\4, because the MOS pattern sL repeats at every 300 cents. | * The diminished scale (sLsLsLsL) has period 1\4, because the MOS pattern sL repeats at every 300 cents. | ||
The same definition applies for a [[rank]]-2 temperament, when the temperament is seen as generating a MOS. Every interval of a rank-2 temperament is a sum of some number of the period and some number of the generator of the temperament. | The same definition applies for a [[rank]]-2 temperament, when the temperament is seen as generating a MOS. Every interval of a rank-2 temperament is a sum of some number of the period and some number of the generator of the temperament. | ||
[[Category:MOS]][[Category:Rank 2]] | |||
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Revision as of 20:00, 15 January 2021
The period of a MOS is the interval at which the MOS pattern repeats; it is the interval of equivalence (usually the octave) or a fraction of it. Along with the generator, it is one of the two defining intervals of a MOS. For example:
- The diatonic scale (LLsLLLs) has period equal to the octave.
- The diminished scale (sLsLsLsL) has period 1\4, because the MOS pattern sL repeats at every 300 cents.
The same definition applies for a rank-2 temperament, when the temperament is seen as generating a MOS. Every interval of a rank-2 temperament is a sum of some number of the period and some number of the generator of the temperament.