半はん音おん階かい

noun

chromatic scale

A music theory term referring to the scale consisting of all twelve semitones within an octave. Contrasts with 全音階 (diatonic scale).

See also: 全音階

• 半はん音おん階かいは、オクターブ内ないのすべての半はん音おんを含ふくむ音おん階かいです。

  The chromatic scale is a scale that includes all semitones within an octave.