If you want a recommendation that might be more to your taste, try this:
(This Morn Omina are a terribly underrated band, by the way...)
However, if you are interested in a bit more info on my position about "what is scary in music":
I have thought about this reply the most. I can not really look into your mind, but I understand you are looking for something "scary" and "strange"?
The "strange" concept can be found in our psytrance music a great deal, it will just be a matter of what type of strangeness you are after and then which bpm or general setting, basically ... but the "scary" part is where it gets tricky in my opinion. It may have to do with the fundamental question: "what is scary to you?"
"Scary Music" - is there even such a thing? And I mean this question in the deepest sense.
I have been running through pitch blackness (i.e. a dark city park around midnight) with only the above mentioned "Tigerhill" on my ears, then I (metaphorically) turned round and did the same backwards with Noma, Prex, old S-Range, everything kinda "dark progressive" that was available ... I cannot describe the feeling as scared, rather "on high alert" because I didn't wanna run into any drugged strangers. This also didn't change as I tried to "up the ante" and bpm with Gappeq or Kindzadza.
I have listened to a great deal of sick black metal ... nah, I also cannot find scaryness there, only a general question of "what do you actually wanna do with all this - with the dark symbols and texts" in my mind. Slaughtering goats on stage? I have not attended, but it wouldn't be scary ... it would just be "intriguing", just the same way like human feces thrown into the audience (I cannot recommend this, by the way).
"Dark ambient?" Sure, why not - it only is difficult to find gigs, but that's what mp3 players are for, right? However, the general tenor with this music is, that it might have an impression that "this is scary" but when I actually listen when the tracks or pieces play, then it's actually not scary at all - just calm, cold, a bit depressing, that's it. I do not know about you, but "scare" emotion was not triggered on my side.
The closest to a "scare" - or rather: a huge impression and impact - was Anthony Rother and I have to give him credit for that: it was his track "Escape From Sector 8" played in the Mayday 2021 Stream. This piece broke the third wall for me, because he was playing in an empty hall with only machines "dancing" to his music: the motors of the spotlights moving and the screens on the floor flashing ... and then I had this realization as he spoke directly at the camera: "I am not real. I am not here. I am a virtual machine, running on (an) operating system: A.I. Technology. Predicting someone's future [...]" ... even then, the music alone wouldn't make me scared, I guess, but the DELIVERY of the message was what got me so good.
So I think that when you are after "scary things", your quest will continue - because first: scare is something personal ... and second: it's (in my opinion) very difficult to find scare in music.
that was my 2 cents on this issue
P.S.(post scriptum):
Yes I was gonna recommend Eat Static, as a second or "third course" on the menu ... they are one of my favourites ... but I have tried to analyze the request and especially the answer to my post more and I think the threadstarter might not be looking for it...
Yes, also I thought of Tigerhill. Might be a good one. However, still the above applies...