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'''540/539''', the '''swetisma''', is a [[comma]] in the [[11-limit]], equal to ([[15/11]])/([[7/6]])<sup>2</sup>, or to ([[99/98]])/([[121/120]]). Thus, tempering any two of 99/98, 121/120 and 540/539 will result in the third of the three being tempered, resulting in the rank 3 temperament [[Nuwell family#Big Brother|Big Brother]]. More generally, tempering 540/539 leads to [[swetismic temperaments]]. | '''540/539''', the '''swetisma''', is a [[comma]] in the [[11-limit]], equal to ([[15/11]])/([[7/6]])<sup>2</sup>, to ([[12/11]]*[[15/14]])/([[7/6]]) or to ([[99/98]])/([[121/120]]). Thus, tempering any two of 99/98, 121/120 and 540/539 will result in the third of the three being tempered, resulting in the rank 3 temperament [[Nuwell family#Big Brother|Big Brother]]. More generally, tempering 540/539 leads to [[swetismic temperaments]]. | ||
== See also == | == See also == | ||