A katakana word for a song, especially common in pop-music and media compounds. In everyday Japanese, 曲 or 歌 may be more general depending on context.
I like the theme song of this movie.
She listens almost only to heartbreak songs.
folk song; folk music
answer song
local-themed song; song about a specific region
anime song
Katakana form used for a foreign-style word meaning 'song'; no donor language is specified.