▁This ▁difference ▁between ▁the ▁initial ▁" c " ▁and ▁final ▁" c " ▁that ▁is ▁derived ▁from ▁performing ▁a ▁series ▁of ▁perfect ▁tun ings ▁is ▁generally ▁referred ▁to ▁as ▁the ▁P yth ag ore an ▁comma . ▁Many ▁tun ing ▁systems ▁have ▁been ▁developed ▁to ▁" sp read ▁around " ▁that ▁comma , ▁that ▁is , ▁to ▁divide ▁that ▁anom alous ▁musical ▁space ▁among ▁the ▁other ▁intervals ▁of ▁the ▁scale . ▁ ▁Pract ical ▁Tem per aments : ▁Kir n berger ▁II ▁ ▁Kir n berger ' s ▁first ▁method ▁of ▁compens ating ▁for ▁and ▁closing ▁the ▁circle ▁of ▁fifth s ▁was ▁to ▁split ▁the ▁" w olf " ▁interval , ▁known ▁to ▁those ▁who ▁have ▁used ▁meant one ▁temper aments , ▁in ▁half ▁between ▁two ▁different ▁fifth s . ▁That ▁is , ▁to ▁compens ate ▁for ▁the ▁one ▁extra ▁comma , ▁he ▁removed ▁half ▁a ▁comma ▁from ▁two ▁of ▁the ▁formerly ▁perfect ▁fifth s ▁in ▁order ▁to ▁complete ▁the ▁circle . ▁In ▁so ▁doing , ▁he ▁allowed ▁the ▁remaining ▁fifth s ▁to ▁stay ▁pure . ▁At ▁the ▁time , ▁however , ▁pure ▁third s ▁were ▁more ▁val ued ▁than ▁pure ▁fifth s ▁( me ant one ▁temper ament ▁had ▁eight ▁pure ▁third s ▁and ▁sacrific ed ▁four ▁entire ▁ch ords ▁to ▁achieve ▁this ▁end .) ▁So , ▁Kir n berger ▁allowed ▁for ▁three ▁pure ▁third s , ▁the ▁rest ▁being ▁slightly ▁wide ▁and ▁the ▁worst ▁being ▁three ▁P yth ag ore an ▁third s ▁( 2 2 ▁c ents ▁wider ▁than ▁pure