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| == Terrain == | | == Terrain == |
| {{Redirect|Terrain|the scale|Terrain (scale)}} | | {{Redirect|Terrain|the scale|Terrain (scale)}} |
| | | {{See also| Subgroup temperaments #Terrain }} |
| Terrain, the 6 & 21 temperament in the 2.9/5.9/7 subgroup, is related to [[domain (temperament)|domain]]. It is a remarkable temperament, in that while its complexity is low, it has no discernible error. The 1–7/5–9/5 and 1–9/7–9/5 chords are characteristic.
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| [[Subgroup]]: 2.9/5.9/7
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| [[Comma list]]: [[250047/250000]]
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| {{Mapping|legend=2| 3 0 -4 | 0 1 2 }} | |
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| {{Mapping|legend=3| 3 10/9 -7/9 2/9 | 0 -2/3 -1/3 2/3 }}
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| : [[gencom]]: [63/50 10/9; 250047/250000]
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| [[Optimal tuning]] ([[Tp tuning|subgroup]] [[POTE]]): ~63/50 = 1\3, ~10/9 = 182.461
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| {{Optimal ET sequence|legend=1| 6, 21, 27, 33, 105, 138, 171, 1848, 2019, 2190, 2361, 2532, 2703, 2874, 3045, 3216, 3387, 3558 }}
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| [[Tp tuning #T2 tuning|RMS error]]: 0.00844 cents
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| [[File:terrain_3558edo.png|right|alt=terrain_3558edo.png|Terrain in 3558edo]] | | [[File:terrain_3558edo.png|right|alt=terrain_3558edo.png|Terrain in 3558edo]] |