(subclass MusicChart List) | Music.kif 1119-1119 | MusicChart は リスト の subclass では %n |
(subclass SinglesChart MusicChart) | Music.kif 1132-1132 | SinglesChart は MusicChart の subclass では %n |
(subclass AlbumChart MusicChart) | Music.kif 1144-1144 | AlbumChart は MusicChart の subclass では %n |