filk
adjective
°(of music) About or inspired by science fiction, fantasy, horror, science, and/or subjects of interest to fans of speculative fiction; frequently, being a song whose lyrics have been altered to refer to science fiction; parodying. (However, much filk music is original rather than parodic.).
noun
°Filk music.
°Filk song.
verb
°To perform filk music.
°To participate in a filk circle, including singing along.