Greg Edmonson Firefly [Original Television Soundtrack] Varese Sarabande - For a show that lasted only one season, it has outlived many that have gone on to future seasons. Joss Whedon (The Avengers, Agents Of S.H.I.E.L.D.) created one of the most loved science fiction Television shows about a ship called Serenity that travels the galaxies. Adding to all the drama and action is composer Greg Edmonson's iconic score.