Harrison's comma

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Interval information
Ratio 59049/57344
Monzo [-13 10 0 -1
Size in cents 50.72410
Name(s) Harrison's comma

59049/57344, or Harrison's comma, is the amount by which ten 3/2s exceed 7/4 (all octave-reduced). In other words, (3/2)10 = 7 ⋅ 59049/57344. It is tempered out in septimal meantone, where ten generators is mapped to 7/4.