You might like music from:
Dances With Wolves - John Barry (movie has its violent moments, but it's also very beautiful at parts)
Princess Mononoke (A Miyazaki movie, so I bet you've seen it) - Joe Hisaishi
Braveheart - James Horner (war movie, so I suggest, if this is a deterrence, just listening to the soundtrack)
The Sheltering Sky - Ryuichi Sakamoto
The Truman Show - Burkhard Dallwitz and Philip Glass
Fearless - Shigeru Umebayashi (the same composer of House of Flying Daggers)
Crouching Tiger, Hidden Dragon or Hero - Tan Dun (I didn't really like CTHD, but the music is very nice)
The director of Hero and House of Flying Daggers, who makes some incredibly visually stunning movies, has an older movie called The Road Home, which I really enjoyed. It has the same actress who also played in both of the other two films listed above.
There are certain tracks on some of these that are kind of loud, but they all have quiet moments, which is the reason I added them. Also, some of the above movies have war scenes. Two movies, Sense and Sensibility (2008 version and not the Emma Thompson movie) and North and South (with Richard Armitage) are both beautiful films with great soundtracks...that have not been released.