minor second
Noun
Meaning
minor second (plural minor seconds)
(music) an interval that is equivalent to one half step
The minor second has a pitch ratio close to 18:17.
Synonyms
Examples
Dorian is the same as minor mode except with a major sixth, and Phrygian mode is the same as minor mode except with a minor second.
They lack roughness because they lack major and minor second intervals.