Interval of equivalence: Difference between revisions

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== Non-octave equivalence ==
== Non-octave equivalence ==
When the interval of equivalence is specifically not an octave, it is called the '''equave''' (a portmanteau of "equivalence" and "octave"). The app Scala refers to this as a '''formal octave'''<ref>Op de Coul M. ''Scala help'' https://www.huygens-fokker.org/scala/help.htm</ref>.
When the interval of equivalence is specifically not an octave, it is called the '''equave''' (a portmanteau of "equivalence" and "octave") or '''formal octave'''<ref>Op de Coul M. ''Scala help'' https://www.huygens-fokker.org/scala/help.htm</ref>.
While the octave is the predominant interval of equivalence in most musical traditions, alternative equivalence intervals have been explored.
While the octave is the predominant interval of equivalence in most musical traditions, alternative equivalence intervals have been explored.
A famous example is the [[tritave]] in [[Bohlen–Pierce]] and related systems.
A famous example is the [[tritave]] in [[Bohlen–Pierce]] and related systems.