This comes from a drum synth function on an old mysterious electric organ. It also features the analog reverb enabled. I recorded this straight from the speaker 24bit with a sony pcm-d50.
I played a bit with the filters and oscillators of a free vst synth. This sound is useful for cutting and applying different effects over it. I think that it can be used standalone as well.
Generic sci-fi drone. Created on a keyboard. Could be the sound of an alien vaporizing someone with some kind of ray/mind device. Or the sound of strange chemicals combining. Possibly a sudden super-dramatic character movement/drug freakout.