8L 5s: Difference between revisions

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-This MOS is the chromatic scale of Semidim, Tridec, Ammonite and Petrtri temperaments. It represents tempered chains of the 13:10 or 17:13 superthird, thus rendering 10:13:17 as an equidistant triad and tempering out 170:169. Also, the ratio between the generator of this MOS and its inverse is close to [[logarithmic phi]], or even logarithmic phi itself.
+{{User:IlL/Template:RTT restriction}}
+{{Infobox MOS
+| Name = petroid
+| Periods = 1
+| nLargeSteps = 8
+| nSmallSteps = 5
+| Equalized = 5
+| Paucitonic = 3
+| Pattern = LLsLLsLLsLsLs
+}}
+'''8L 5s''' or '''petroid''' (named after [[5L 3s/Temperaments#Petrtri|petrtri]] temperament) is a scale pattern that expands on oneirotonic ([[5L 3s]]). This MOS is the chromatic scale of Semidim, Tridec, Ammonite and Petrtri temperaments. It represents tempered chains of the 13:10 or 17:13 superthird, thus rendering 10:13:17 as an equidistant triad and tempering out 170:169. Also, the ratio between the generator of this MOS and its inverse is close to [[logarithmic phi]], or even logarithmic phi itself.
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