Trevor Jones scored the 25-minute short film.
The composer’s website had a 26-second clip of the track "The Black Angel" up until recently. I used the Wayback Machine at archive.org to find the url to the audio source. Turns out the mp3 encoded at 160 Kbps is still hosted on that site!
For anyone interested, here is the link: http://trevorjonesfilmmusic.com/mp3s/Black%20Angel%201.mp3
The short film was considered lost, until last December when the original negative was discovered at Universal Studios. Read more about this news at Wired Magazine’s website: The Sword and Sorcery Precursor to Empire Strikes Back | Underwire | Wired.com (http://www.wired.com/underwire/2012/12/20-12-pl_blackangel/)
I will be updating this post in the coming months with a rip of the score from the short film. Thought I would do a bootleg of the score complete with custom cover art. Currently trying to remove as many sound effects and as much dialog as possible without harming the dynamic of the sound…