Diatonic semitone

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In scale theory, the diatonic semitone, the minor second or the limma is the small step of the diatonic scale.

In just intonation, an interval may be classified as a diatonic semitone if it is reasonably mapped to 1\7 and 1\12 (precisely one step of the diatonic scale and one step of the chromatic scale).

See also