Filk covers a wide range of musical genres. Pretty much any known music style can be heard in a filk circle. Below are a few samples.
Parody
Parody involves taking a well-known song and rewriting the lyrics.
Come to Mordor (Jeff and Maya Bonhoff) based on Come Together (Beatles)
Tie After Tie (Debs & Errol) based on Time After Time (Cyndi Lauper)
Found Filk
Popular music that has Science Fiction & Fantasy or technology themes.
39 (Queen)
Witch of the Westmoreland (Archie Fisher)
Folk
Original filk songs written in a traditional folk style
Banned From Argo (Leslie Fish)
Storyteller (Anne Harlan Prather)
Celtic/Renaissance
Original music in the Irish/British ballad style, often about folk or fairy tales.
Black Davies Ride (Margaret Davis & Kristoph Klover)
Mordred’s Lullaby (Heather Dale)
Geek/Nerd
Generally witty, fun music about geeky topics like SF and Fantasy movies and TV series, computer tech and other popular millennial topics. Can be parodies or original music.
Crossing the Streams (Copy Red Leader)
The Lego Song (PDX Broadsides)
Wizard Rock
Geek music specific to the world of Harry Potter.
Time Turner (Ministry of Magic)
We R Slytherins (Not Literally Productions)
Steampunk
Music related to the Steampunk genre, a retrofuturistic subgenre of science fiction or science fantasy that incorporates technology and aesthetic designs inspired by 19th-century industrial steam-powered machinery.
The Mechanical Girl (Aurelio Voltaire)
The Last Steampunk Waltz (Ghostfire)
Mythpunk
Music related to the Mythpunk genre, a subversive subgenre of mythic fiction which uses aspects of folklore to subvert or question dominant societal norms, often bringing in a feminist and/or multicultural approach.
City of Marrow (S.J. Tucker)
Snow White, Red Road (Cheshire Moon)