Stratosphere: Difference between revisions
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'''Stratosphere''' is a 37-limit regular temperament conceived by Kaiveran that tempers out a plethora of [[ | '''Stratosphere''' is a 37-limit [[regular temperament]] conceived by [[User:Kaiveran|Kaiveran]] that tempers out a plethora of [[unnoticeable comma]]s. It gets its name from the fact that 37 pretty absurdly high to climb in the harmonic ladder. 37 is also the first [[interseptimal]] interval in the harmonic series (a "hemifourth"), so this general area is a distinct new territory, or stratum if you will, of the harmonic "atmosphere". | ||
Aside from the psychoacoustic advantage of tempering out such small commas, a secondary concept of this temperament is that complex intervals in lower prime limits are identified with simple intervals in higher prime limits (for example, 81/64 = 19/15, 27/20 = 23/17, etc.) Since it tempers out the ragisma, it | Aside from the psychoacoustic advantage of tempering out such small commas, a secondary concept of this temperament is that complex intervals in lower prime limits are identified with simple intervals in higher prime limits (for example, 81/64 = 19/15, 27/20 = 23/17, etc.) Since it tempers out the ragisma, it qualifies as a [[Ragismic microtemperaments|ragismic microtemperament]], and is actually an extension of [[Ragismic microtemperaments #Quatracot|quatracot]]. | ||
== Temperament data == | |||
Subgroup: 2.3.5.7.11.13.17.19.23.29.31.37 | |||
[[Comma list]]: 460/459, 481/480, 494/493, 625/624, 729/728, 1024/1023, 1216/1215, 1575/1573, 2058/2057, 2200/2197 | |||
[[Mapping]]: [{{val| 2 7 7 23 19 13 40 30 50 5 -6 11 }}, {{val| 0 -13 -8 -59 -41 -19 -108 -73 -139 16 54 -2 }}] | |||
[[POTE generator]]s: ~99/70 = 600.0000, ~21/19 = 176.7896 | |||
[[TOP tuning|TOP generator]]s: 600.0648, 176.8087 | |||
{{Optimal ET sequence|legend=1| 34dgghii, 190ghhiikl, 224hl }} | |||
[[Badness]]: 0.046174 | |||
[[Category:Stratosphere| ]] <!-- main article --> | |||
[[Category:Rank-2 temperaments]] | |||
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