One night a few years back I was in my bedroom and heard a spooky sound coming from outside in the distance. I sought my microcassette-corder, opened the window, and captured a couple minutes of it on tape. I never figured out what it was. Motorcycles on the highway, racecars at the fairgrounds, an extraterrestrial spacecraft dropping a monolith for some apes? I hear G3, G#3, C#4, and D4.
Unidentified Spooky Sound