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{{Expert|Periods and generators}} | {{Expert|Periods and generators}} | ||
A '''generator''', also called '''formal fifth'''<ref>Op de Coul, E.F. [https://www.huygens-fokker.org/scala/help.htm Scala help].</ref>, is an interval which is stacked repeatedly to create pitches in a [[tuning system]] or a [[scale]]. | A '''generator''', also called '''formal fifth'''<ref>Op de Coul, E.F. [https://www.huygens-fokker.org/scala/help.htm Scala help].</ref>, is an interval which is [[Stacking|stacked]] repeatedly to create pitches in a [[tuning system]] or a [[scale]]. | ||
In [[MOS scale]]s, the generator is an interval that you stack up and reduce by the [[period]] of the mos to construct the MOS pattern within each period. Along with the [[period]], it is one of two defining intervals of the MOS. For example: | In [[MOS scale]]s, the generator is an interval that you stack up and reduce by the [[period]] of the mos to construct the MOS pattern within each period. Along with the [[period]], it is one of two defining intervals of the MOS. For example: | ||