and who composed the soundtrack?
Christopher Lennert
Pilot (Supernatural)
The episode's synthesized orchestral score was written by Christopher Lennertz, 
when did the first episode of supernatural come out September 13, 2005 is it still running? The season 15 series finale was set to air on November 19, 2020. what is the premise of this show? UNANSWERABLE who directed the above-mentioned episode? David Nutter
wiki:12419721
Pilot (Supernatural) [SEP] Music
The episode's synthesized orchestral score was written by Christopher Lennertz, Kripke's friend and next-door neighbor. The two attended USC School of Cinematic Arts together, and worked together on various projects afterwards. Lennertz described "Supernatural" as "one of those dream situations where you get to work with someone who you admire, but also have a relationship with already", and noted he and Kripke "were already on the same page without even talking about [the series' music]". For the scenes involving Mary and Jessica's deaths at the hands of the demon Azazel, Lennertz used a piano solo with discordant notes and reverberations to create a "really nasty" sounding echo effect.