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| {{Todo|inline=1|merge articles|comment= [[Ambulatory]] → [[Subgroup temperaments]] }}
| | #redirect [[Subgroup temperaments #Ambulatory]] |
| '''Ambulatory''' is a [[nonoctave]] [[rank-2 temperament|rank-2]] [[regular temperament|temperament]] repeating at [[3/2]] which is generated by a flat ~[[7/5]]. It [[tempering out|tempers out]] the [[comma]] [[686/675]] in the 3/2.5/4.7/4 fractional [[subgroup]]. This implies a stack of 2 generators represents [[9/7]] fifth-reduced, and a stack of 3 generators represents [[6/5]] fifth-reduced.
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| Ambulatory can be considered the 3/2.5/4.7/4 analog of 3.5.7 [[Bohlen-Pierce-Stearns|BPS]] or 2.3.5 [[meantone]], using [[5:6:7]] as its fundamental consonant chord in the place of [[3:5:7]] or of [[4:5:6]]. Ambulatory is actually similar to meantone in several ways:
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| * They are both of low [[badness]].{{dubious}}
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| * In most [[optimal tuning]]s, meantone tunes [[3/2]] flat and [[5/4]] slightly sharp, while ambulatory tunes [[7/5]] flat and [[6/5]] slightly sharp.
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| * Meantone[7] has [[5/4]] and [[6/5]] share a scale degree. Ambulatory[5] has [[6/5]] and [[7/6]] share a scale degree.
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| * Meantone[7] is a tempering of the 7-note [[AGS]](5/4, 6/5) (Ptolemy's intense diatonic) with the large and medium steps equated. Ambulatory[5] is a tempering of the 5-note AGS(6/5, 7/6) (assuming an equivalence of 3/2) with the medium and small steps equated.
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| == Etymology ==
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| The temperament was first documented by [[User:CompactStar|CompactStar]] who originally proposed the name of "emergency", which refers to the North American emergency telephone number 911, because 9\[[11edf]] is a possible generator. This was deemed as too dark so the name "ambulatory" was suggested by [[User:Frostburn|Frostburn]] to more subtly reference the same thing.
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| [[Category:Ambulatory| ]] <!-- main article -->
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| [[Category:Rank-2 temperaments]] | | [[Category:Rank-2 temperaments]] |
| [[Category:Non-octave temperaments]] | | [[Category:Non-octave temperaments]] |