haunting/dark classical


new to classical, I really like Samuel Barber's Adagio for Strings, Op 11. I am looking for other music with the same dark/haunting sound. Suggestions?
lwatson
The Gidon Kremer is an outstanding piece of work. I bought it based on this discussion. It has quickly become a favorite.
For something alittle different try:

Tavner - The protecting Veil

Peteris Vasks - Distant Light

Sanctuary - Suite for organ, cello, bass clarinet, and strings

John