半はん音おん階かいMeaningsNoun1. chromatic scaleKanji used半half音sound階floor (of a building)Pitch accentはんおんかいComposed of半はん音おんsemitone; half step; halftoneNoun階かいstorey; story; floor; stairs; stage (in chronostratigraphy); counter for storeys and floors of a buildingNoun