198edo: Difference between revisions
Cmloegcmluin (talk | contribs) add link for defactoring |
Cleanup and expand on theory |
||
Line 1: | Line 1: | ||
The '''198 equal divisions of the octave''' (''' | The '''198 equal divisions of the octave''' ('''198edo'''), or the '''198(-tone) equal temperament''' ('''198tet''', '''198et''') when viewed from a [[regular temperament]] perspective, divides the [[octave]] into 198 parts of 6.061 [[cent]]s each. | ||
== Theory == | == Theory == | ||
198edo is [[enfactored]] in the [[7-limit]], with the same tuning as [[99edo]], but makes for a good 11- and 13-limit system. Like 99, it tempers out [[2401/2400]], [[4375/4374]], [[3136/3125]], [[5120/5103]] and [[6144/6125]] in the 7-limit; in the [[11-limit]] it tempers [[3025/3024]], [[3388/3375]], [[9801/9800]], [[14641/14580]], and [[16384/16335]]; and in the [[13-limit]] [[352/351]], [[676/675]], [[847/845]], [[1001/1000]], [[1716/1715]], [[2080/2079]] and [[6656/6655]]. | |||
It | It provides the [[optimal patent val]] for the rank-5 temperament tempering out 352/351, plus other temperaments of lower rank also tempering it out, such as [[hemimist]] and [[namaka]]. It is distinctly [[consistent]] through the [[15-odd-limit]]. | ||
The 198b val supports a [[septimal meantone]] close to the [[CTE tuning]], although [[229edo]] is even closer, and besides, the 198be val supports an undecimal meantone almost identical to the [[POTE tuning]]. | |||
198 factors into 2 × 3<sup>2</sup> × 11, and has divisors {{EDOs| 2, 3, 6, 9, 11, 18, 22, 33, 66 and 99 }}. | |||
=== Prime harmonics === | === Prime harmonics === | ||
Line 39: | Line 43: | ||
=== Rank-2 temperaments === | === Rank-2 temperaments === | ||
Note: temperaments supported by | Note: temperaments supported by 99edo are not included. | ||
{| class="wikitable center-all left-5" | {| class="wikitable center-all left-5" |