Collector Leviathan Music Informer

The Collector has a scary ‘boss music’ that plays when is in the area. I suggest making the music quieter the farther it is from the player, louder as it gets closer, and a faster tempo if it noticed you. This would make the music have even more of a tense moment. You already know its somewhere, that it is getting closer, and all of the sudden the music speeds up and you know you have been seen.

See I think that there should be no music it is distracting and overwhelming why not make them have loud scary rawrs instead

Have you heard of dichotic dissonance and/or Infrasound? What about if instead of muisic those were utilized. These could be combined into an inperceptible ‘sound track’ for leviathans such as the collector.
Short summery of each below

Infrasound consists of sound waves below 20 Hz, below the threshold of human hearing. Though inaudible, it is felt as deep vibrations, pressure, or unease in the body and mind

Dichotic dissonance basically feeding slightly different frequencies, phases, or timings to each ear (e.g., a 200 Hz tone in the left and 203 Hz in the right) which causes the brain to struggle to fuse the signals into one coherent sound. This creates a pulsating, unsettling, or “wrong” sensation—triggering unease, disorientation, tension, or even mild fear responses.