**27/25**, called the **large limma** or **acute minor second**, at 133.238 [[cent]]s, has the remarkable property of almost exactly equaling a singe step of [[9edo]], a step of which is 133 1/3 cents. Hence nine large limmas fall just short of an octave by the [[ennealimma]] (meaning "nine limmas") which is |1 -27 18>, a comma of less than a cent in size. If all of that were not enough, two large limmas are almost exactly a [[7_6|subminor third]], since (7/6)/(27/25)^2 = 4375/4374. Turning from microtempering to exotempering, [[27_25|27/25]] can be [[tempering out|tempered out]], leading to [[Bug family|bug temperament]], rather than the [[Ragismic microtemperaments#Ennealimmal|ennealimmal temperament]] which tempering out both the ennealimma and 4375/4374, the [[ragisma]], leads to.
'''27/25''', called the '''large limma''' or '''acute minor second''', at 133.238 [[cent|cent]]s, has the remarkable property of almost exactly equaling a singe step of [[9edo|9edo]], a step of which is 133 1/3 cents. Hence nine large limmas fall just short of an octave by the [[ennealimma|ennealimma]] (meaning "nine limmas") which is |1 -27 18>, a comma of less than a cent in size. If all of that were not enough, two large limmas are almost exactly a [[7/6|subminor third]], since (7/6)/(27/25)^2 = 4375/4374. Turning from microtempering to exotempering, [[27/25|27/25]] can be [[tempering_out|tempered out]], leading to [[Bug_family|bug temperament]], rather than the [[Ragismic_microtemperaments#Ennealimmal|ennealimmal temperament]] which tempering out both the ennealimma and 4375/4374, the [[ragisma|ragisma]], leads to.
Coincidentally 27/25 is exactly three octaves below the ratio between 432hz and 50hz, common frequencies in tuning and AC electrical power respectively.</pre></div>
Coincidentally 27/25 is exactly three octaves below the ratio between 432hz and 50hz, common frequencies in tuning and AC electrical power respectively.
<strong>27/25</strong>, called the <strong>large limma</strong> or <strong>acute minor second</strong>, at 133.238 <a class="wiki_link" href="/cent">cent</a>s, has the remarkable property of almost exactly equaling a singe step of <a class="wiki_link" href="/9edo">9edo</a>, a step of which is 133 1/3 cents. Hence nine large limmas fall just short of an octave by the <a class="wiki_link" href="/ennealimma">ennealimma</a> (meaning &quot;nine limmas&quot;) which is |1 -27 18&gt;, a comma of less than a cent in size. If all of that were not enough, two large limmas are almost exactly a <a class="wiki_link" href="/7_6">subminor third</a>, since (7/6)/(27/25)^2 = 4375/4374. Turning from microtempering to exotempering, <a class="wiki_link" href="/27_25">27/25</a> can be <a class="wiki_link" href="/tempering%20out">tempered out</a>, leading to <a class="wiki_link" href="/Bug%20family">bug temperament</a>, rather than the <a class="wiki_link" href="/Ragismic%20microtemperaments#Ennealimmal">ennealimmal temperament</a> which tempering out both the ennealimma and 4375/4374, the <a class="wiki_link" href="/ragisma">ragisma</a>, leads to.<br />
<br />
Coincidentally 27/25 is exactly three octaves below the ratio between 432hz and 50hz, common frequencies in tuning and AC electrical power respectively.</body></html></pre></div>
27/25, called the large limma or acute minor second, at 133.238 cents, has the remarkable property of almost exactly equaling a singe step of 9edo, a step of which is 133 1/3 cents. Hence nine large limmas fall just short of an octave by the ennealimma (meaning "nine limmas") which is |1 -27 18>, a comma of less than a cent in size. If all of that were not enough, two large limmas are almost exactly a subminor third, since (7/6)/(27/25)^2 = 4375/4374. Turning from microtempering to exotempering, 27/25 can be tempered out, leading to bug temperament, rather than the ennealimmal temperament which tempering out both the ennealimma and 4375/4374, the ragisma, leads to.
Coincidentally 27/25 is exactly three octaves below the ratio between 432hz and 50hz, common frequencies in tuning and AC electrical power respectively.