Music From the Verse
The music from the original series Firefly, and from the Serenity Movie has inspired a large number of artists to create their own contributions of music inspired not only by the show, but also by the struggle of browncoats to revive the show, and finally get their own movie. This type of music has also been called Firefilk.
Here is a list of the music out there, with links to the bands, cds, and mp3s.
Original Score for the TV Series Firefly
Original Score for the Serenity Movie - http://www.tracksounds.com/reviews/firefly_serenity.htm
On the Drift (Full CD) by the Bedlam Bards - http://www.bedlambards.com/Browncoats.html
I'm On Firefly by Tom Smith - http://filkertom-itom.blogspot.com/2007/09/050-im-on-firefly.html
No Stars by The Ben Gunn Society - http://soundcloud.com/igorama/the-ben-gunn-society-no-stars