藝術與建築詞典根目錄
....物件層面
........裝備與設備
............聲音裝置 (層級名)
................<依音響特性區分之聲音裝置>
....................弦鳴樂器
........................豎琴
............................框架豎琴
................................半音豎琴
....................................踏板豎琴
|||........................................單一動作踏板豎琴
|||........................................雙級變音豎琴
|||....................................鉤豎琴