Just thought I'd pop in an FYI on CreepWorks Studios. I have several of his CD's & they are great ambient haunt music / audioscapes that he has in themes.
You can here a sample of most of his cd's here - http://www.creepworksstudios.com/audio.html - go to the " shop " button below to see each CD.

If you need carny I personally recommend "Maniacal Midway" & "Dark Ride". "Shivers" in another intense one ( I have ) & "Manifestations" ( new ) also sounds pretty intense too.

He just put out 3 new ones, there are a few that didn't do it for me personally, but most others that were a must have, all are well done though.

I have no affiliation with them, bought a couple more & just passing the word on some good stuff !