27/26

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Interval information
Ratio 27/26
Monzo |-1 3 0 0 0 -1>
Size in cents 65.33734
Name(s) small tridecimal third tone
Color name 3u1, thu unison

[sound info]

In 13-limit just intonation, 27/26, the small tridecimal third tone, appears as the interval between the Pythagorean major sixth of 27/16 and the thirteenth harmonic -- 13/8. It measures about 65.3¢. It is close in size to another 13-limit microtone -- 26/25. These intervals differ by the superparticular ratio 676/675, about 2.6¢. This is the island comma; tempering it out produces temperaments associated with The Archipelago.

See also