angry

anxious

aggressive

dark

disturbing

eerie

evil

hard

haunting

horror

heavy

high tech

industrial

ominous

foreboding

scary

suspense

tension

terror

trent reznor

nine inch nail

horrific

horror music

horrifying

spooky

scared

haunted

space

spaceship

deep space

frantic

freaky

menacing

science fiction

sci fi

technology

tense

ambient

harsh

terrifying

terrify

doom

distorted

distortion

ambient techno

techno

atmospheric

creepy

intimidating

violin

cello

synth bass

synth percussion

drum

string

percussion

synthesizer

synth pad

pad