ok, here’s my spooky composition based off the scenario you gave of Halloween night and seeing a ghost. I’m not afraid of ghosts, so I tried to capture the eerie feeling of the moment. I’m sure there’s lots of dissonance. I wanted to try and create an atmosphere of tension and confusion like a person scrambling but not knowing what was coming around the next corner. Hope I did ok with it. I just played what I felt. It’s in the key of D# Minor