Minor seventh

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In just intonation

By prime limit

The Pythagorean (3-limit) minor seventh is 16/9, which is 996 ¢ in size and corresponds to the mos-based interval category of the diatonic minor seventh. It is generated by stacking two just perfect fourths of 4/3.

Other major seconds exist in higher limits:

  • The 5-limit ptolemaic minor seventh is a ratio of 9/5, however in 5-limit harmony it is used alongside 16/9. It is about 1018 ¢.
  • The 7-limit (septimal) subminor seventh, harmonic seventh, or overtone seventh is a ratio of 7/4, and is about 969 ¢.


ViewTalkEditInterval classification
Interval regions
Unison and octave UnisonComma and diesisOctave
Seconds Minor secondNeutral secondMajor second
Thirds Minor thirdNeutral thirdMajor third
Fourths and fifths Perfect fourthSuperfourthTritoneSubfifthPerfect fifth
Sixths Minor sixthNeutral sixthMajor sixth
Sevenths Minor seventhNeutral seventhMajor seventh
Interseptimal intervals Interseptimal 2nd-3rd • Interseptimal 3rd-4th • Interseptimal 5th-6th • Interseptimal 6th-7th
Interval qualities
Diatonic qualities DiminishedMinorPerfectMajorAugmented
Tuning ranges Neutral (interval quality)Submajor and supraminorPental major and minorNovamajor and novaminorNeogothic major and minorSupermajor and subminorUltramajor and inframinor