Hey all.
I'm trying to find a certain type of classical music. I'm looking for pieces which are atmospheric and really gothic-sounding (think organs and harpsichord, &c.) I find this type of music is very hard to come across. Any help would be much appreciated.

Not Sure what you mean by gothic but try Bach toccata and figure in D minor

here are some links that have a few gothic era composers and score titles, but it would be really hard to find the accual sheet music for them. Most pieces written during that time were untitled and unmarked, so you probably wont find much.

http://www.classicalscore.com/gothicera.htm

http://www.classical.net/music/rep/defs/med.html

Hope this helped alittle.

<Added>

Here's somewhere you can listen to 'Cantigas de Santa Maria.
Mvt.4: Maravillosos et piadosos' by Alfonso El Sabio (1221 - 1284)
http://www.classical.com/listen/player4/index.php?token=$R~CCiC~CZZGh$0Wr0RZbVV6OdGi22bVV~Z&inline=1&type=mini


If click on this search engine link you'll find recordings of Messe de Notre Dame(1360)
http://www.dogpile.com/info.dogpl/search/audio/Messe%252Bde%252BNotre%252BDame/1/-/1/-/-/-/1/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/417/top/-/-/0


(Obviously these recordings were recorded more rescently) :)

My last post is referring to middleages gothic. Not the modern rockstyle gothic music. So I'm not sure that is what you're looking for.