Perfect fourth: Difference between revisions

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* The 13-limit '''infrafourth''' is a ratio of 13/10, and is about 454 cents, but it might be better analyzed as an [[Major third|ultramajor third]]. Despite that, it is also here for completeness.
* The 13-limit '''infrafourth''' is a ratio of 13/10, and is about 454 cents, but it might be better analyzed as an [[Major third|ultramajor third]]. Despite that, it is also here for completeness.


== In tempered scales ==
== In EDOs ==
The following table lists the best tuning of 4/3, as well as other fourths if present, in several significant EDOs.
The following table lists the best tuning of 4/3, as well as other fourths if present, in various significant [[EDOs]].
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== In temperaments ==
== In temperaments ==
The following list goes over the use of 4/3 in temperaments.
The simplest perfect 4th ratio is 4/3. The following notable temperaments are generated by it:


=== Temperaments with 4/3 as a generator ===
=== Temperaments that use 4/3 as a generator ===


* [[Compton]], the temperament of the Pythagorean comma, equivalent to 12edo
* [[Compton]], the temperament of the Pythagorean comma, equivalent to 12edo