Minor third (diatonic interval category): Difference between revisions

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Invert the wording on diatonic/chromatic scale steps for beginner-friendliness
m Sort interval regions by size
Line 7: Line 7:
| Header 5 = Basic tuning | Data 5 = 300{{c}}
| Header 5 = Basic tuning | Data 5 = 300{{c}}
| Header 6 = Function on root | Data 6 = Mediant
| Header 6 = Function on root | Data 6 = Mediant
| Header 7 = Interval regions | Data 7 = [[Semifourth]], [[neutral third]], [[minor third (interval region)|minor third]]
| Header 7 = Interval regions | Data 7 = [[Semifourth]], [[minor third (interval region)|minor third]], [[neutral third (interval region)|neutral third]]
| Header 8 = Associated just intervals | Data 8 = [[6/5]], [[32/27]]
| Header 8 = Associated just intervals | Data 8 = [[6/5]], [[32/27]]
| Header 9 = Octave complement | Data 9 = [[Major sixth (diatonic interval category)|Major sixth]]
| Header 9 = Octave complement | Data 9 = [[Major sixth (diatonic interval category)|Major sixth]]

Revision as of 12:50, 17 April 2025

Diatonic minor third
MOS 5L 2s
Other names Minor 2-diastep
Generator span -3 generators
Tuning range 240–343 ¢
Basic tuning 300 ¢
Function on root Mediant
Interval regions Semifourth, minor third, neutral third
Associated just intervals 6/5, 32/27
Octave complement Major sixth

A minor third (m3) is an interval that spans two scale steps in the diatonic scale with the minor (narrower) quality. It is generated by stacking 3 fourths octave reduced, and depending on the specific tuning, it ranges from 240 to 343 ¢ (1\5 to 2\7).

In just intonation, an interval may be classified as a major third if it is reasonably mapped to two steps of the diatonic scale and three steps of the chromatic scale, or formally 2\7 and 6\24. The use of 24edo's 6\24 as the mapping criteria here rather than 12edo's 3\12 better captures the characteristics of many intervals in the 11- and 13-limit.

The minor third can be stacked with a major third to form a perfect fifth, and as such is often involved in chord structures in diatonic harmony.

In TAMNAMS, this interval is called the minor 2-diastep.

Todo: WIP

See also