minor second

(music) an interval that is equivalent to one half step

Japanese Meaning

音楽で、半音（短2度）に相当する音程

The eerie dissonance between the two notes was caused by a minor second.

その不気味な不協和音は二つの音の間の半音が原因だった。

Sense（1）

(music) an interval that is equivalent to one half step

The minor second has a pitch ratio close to 18:17.

minor seconds

（ plural ）