Listen to 不快な音 online. 不快な音 is an Instrumental language song and is sung by ハロウィン Best. 不快な音, from the album ハロウィンのBGM - 怖い歌、精神的 怖い音, was released in the year 2019. The duration of the song is 3:40. Download Instrumental songs online from JioSaavn.