Jazz Tangcay Artisans EditorHorror fans tuning into the final installment of Netflix’s trilogy “Fear Street,” based on the R.L Stine books, are transported back to 1666 to experience a nightmare that has been haunting the town of Shadyside for generations: a witch hunt.To create the soundscape, composer Anna Drubich, influenced by Ari Aster’s 2019 release “Midsommar” and helped along with her training as a classical composer, worked with Marco Beltrami to come up with an experimental vibe.